I bought it today 5/3/2025 to grind coffee in a Dedica 685.

Reading the comments, I saw that some with the same machine needed to add the washers for a finer grind than what the grinder offers. In my case, this is not necessary.

I grind at 8 and the water doesn't even pass through, which means it's very finely ground. I found my grind with Serco Monaco coffee at 14 to 15.

So, to the question of whether it grinds fine, I answer yes, it grinds very finely without needing any adjustments.

To the question of whether coffee remains inside, yes, 1-2 grams remain, which falls out with 2 taps.

To the question of whether it gets stuck and doesn't grind (I was scared the first time I tried to grind). It didn't grind the coffee but made it spin around the blades. Then I added 2 drops of water to the beans and it started grinding.

To the question of whether there is a significant difference in grinding from one setting to another. Yes, there is. With one click back, it doesn't grind, and with one click forward, it becomes quite coarser. I would prefer something intermediate for the ideal grind.

In conclusion, having had the grinder for a day, I would buy it again. For €100, it's a steal.

Can it grind finely enough for espresso or even Greek coffee? YES
(Condition, of course, is the burr grinder mentioned by others, which is a predictable process, in other words, the burrs are included by the manufacturer).

Is the result satisfactory in relation to the price? Clearly, 5/5.

However, considering that someone who wants to take their first steps in espresso sees such a grinder, there are issues here.
1. Significant retention, in other words, you can put in 15g of coffee, and only get 12-12.5g out. If you want to try a different grind setting, unless you open it up and clean it, you will end up with coffee that is 2 grind settings off in your basket. Sometimes more, sometimes less.
2. The grind size adjustment is huge from step to step. For example, the sweet spot for your coffee/machine/quantity, etc. may be between 2 settings, so you may never get the "ideal" coffee no matter what you adjust.
(These things may not matter much for other types of coffee, but they are very important for espresso).
3. It is not user-friendly when it comes to disassembly, for example, to clean the main part where the coffee collects, you need to almost fully disassemble the top part, and it can be frustrating when you have to put everything back in place correctly, springs, buttons, and all.

In conclusion, while someone can get a fairly good coffee with, for example, a Dedica machine + unpressurized basket, the same does not apply to the grinder. In my opinion, the more budget-friendly solution would be to spend a little more money on a GOOD manual grinder (like a Kingrinder K4). It takes about 30 seconds to grind for a double shot, and it's something that you essentially have forever in terms of materials and grind quality...

It is almost a one-way street as an introductory grinder, for someone who wants to try without spending more than 250-300€.

Yes, it can grind espresso. Yes, it can grind for good entry-level machines (lelit, etc.). However, for someone who will engage and drink several coffees, they will inevitably need to replace it.

Its biggest drawback is that a) it is not stepless, so there is a (significant) difference between the available grind settings, which - depending on the coffee you use - can result in significant variations in the extraction recipe, and b) it lacks repeatability in grind quality (i.e., uniformity in size). This is a general problem with conical burr grinders, but here it is perhaps a bit more pronounced - yes, occasionally you will drink decent coffees, but 9 out of 10 times the result will deviate more or less from the best extraction you have achieved. It's not your fault, it's just that the grinder doesn't grind with stability.
It should also be noted that it is VERY noisy (like a very noisy mullet cutter!)

I used it for 2 years. At some point, I reached a dead end and inevitably upgraded to a grinder with flat burrs (eureka mignon). The difference was incomparable from the first cup.

It is a starting point for experimentation - you will inevitably change it if you drink espresso.

Initially, it is a decent grinder that is worth its money. It is a grinder with blades-gears that grinds the coffee correctly and with great consistency. It is not the cheap "blender" grinder that chops the coffee. The package includes holders for 51 and 58 mm groups, which are elastic and can accommodate intermediate sizes. It also includes three wheels for adjusting the grinder and 2 "cups" that fit on the group to catch the coffee without scattering it left and right after grinding.

I have been using the grinder for a year and the negatives I have to mention are:
1) While its price is "introductory," the grinder is not "user-friendly" for a beginner, meaning it has several peculiarities and parameters that the owner must deal with and explore in order to make a good coffee. It is not the grinder that will give you a good coffee right away just by selecting the right setting and flipping a switch. Therefore, I would recommend it either to someone who has knowledge (even minimal) or to a beginner who has the desire and patience to learn and delve into the hobby of coffee.
2) It is not heavy enough to hold the group when you put it in, so you have to hold it from the back only, otherwise, it will lose its setting (if you touch the container connected to the grind selector).
3) The grinder is aimed at someone who will exclusively grind one type of coffee, e.g. espresso or filter. This is because if you add the wheel for the espresso size you want, you will be fine to grind it finely for espresso, but if you want to grind it as fine as possible for filter and adjust the grinder, the coffee will not be coarse enough for filter. To achieve a grind for filter, you will have to remove the blade and add the corresponding wheel. This, of course, is a negative only for someone who drinks different types of coffee simultaneously. For example, I use a manual grinder for filter and a moka pot to avoid the process of changing the wheel.
4) After grinding, the grinder retains a significant amount of coffee in the gap between the blade and the spout. You can lightly tap the grinder to make it fall, or use a small brush to remove it, but I don't think it will be completely removed.

As for the positives, which are many and have been mentioned by other users, I would like to add the following:
1) The grinder is perfect for grinding espresso. It correctly grinds any blend or roast I tried, and the grind had very good consistency.
2) Its price is amazing compared to the quality. It is so good that to find a better grinder, you need to spend over 250€, which objectively exist better grinders with better results and easier to use, but they do not have the same quality-price ratio as this one.

In summary, if you want to drink great espresso, have some knowledge or at least the desire and patience to learn, and don't want to spend a lot of money, this is the ideal choice.

Excellent grinder, once you learn how to use it. I mean, you have to experiment a bit by trying different settings. For espresso (Housebrandt nonneti) at 8, the flow (with a nonpressurized portafilter and tamping) is faster than it should be. At 7, it's too slow. I added the adjustment wheel and now I grind at 16. I get very good coffee (from 7-8g of coffee I get 25-30ml in 25-30 seconds) with satisfactory crema. I use the plastic attachment (cut cup) for coffee directly in the portafilter and no coffee grounds fall outside. (When you pay attention, it doesn't make a mess at all)

Like all grinders, it retains coffee after grinding, which can be removed by tapping from above or using a straw.

When you test the grind settings, make sure to clean the machine completely from the residue of the previous grind, otherwise you will get the wrong result, get frustrated, and it won't be the grinder's fault. It requires a little bit of searching (incomplete manual) but (quickly)

When you learn how to use it, you realize that you have bought the best economically for a home grinder.
Thanasis

21/5/22
I'm coming back to update the above. They still hold true, but I continued experimenting. I cleaned the coffee machine well (descaled it, changed the rubber for maximum pressure), removed the adjustment wheel that I had added, and now I grind coffee (Housebrandt) at 5 with almost perfect results (with a good tamp of the coffee). Maybe with a change of coffee brand, a different adjustment might be needed. As we said, this hobby requires exploration! The grinder, however, works!!

Finally, I would like to add that I realized that for a proper espresso, 80% and more depends on fresh and high-quality coffee beans and the correct grind. A decent and affordable coffee machine with a pressure of up to 15 bars does the rest just fine.

Owner of the grinder here for 4 months, in combination with the Delonghi Dedica EC685 machine.
I have no experience with other grinders or machines, being a beginner in the field.
I had a capsule machine and decided to upgrade my espresso and I succeeded.
After a month of testing different grind sizes and varieties, I consistently enjoy good coffee.
I realized that you need to adjust the grind size according to the variety and this particular grinder
doesn't handle frequent changes well. Similarly, this specific machine doesn't like very fine grind sizes.
First of all, I should mention that I use an unpressurized basket. So, I started with a grind size of 2 (influenced by other opinions) and the coffee didn't flow. I gradually ended up at 8 and haven't needed to change it for 3 months now. However, when changing varieties, I get different extractions, sometimes less than 25" and sometimes more. So, I play around with the tamping because if I adjust the grind size, I lose the ballgame.
Since there is no option to have a consistent coffee dose, and it's impossible to get it right by eye, I never grind directly into the portafilter but into a dosing cup. In addition to everything else (tamper, leveler), I also bought a precision scale, weigh the coffee I want to grind, and start grinding.
The truth is, in order to get back all the coffee I put in, I need to purge a bit of coffee but in the end, I get it. I make sure there is no coffee left inside, so I clean the chute at least once a week with a brush. To be honest, even though everyone recommends regular cleaning, I have only opened it once to see how it's done.
It's a short period of time that I have it to talk about wear, burrs, etc., but the fact that the coffee doesn't flow easily with a grind size of 7 means I have time for modifications.
Also, what I realized from the different grind sizes I tried is that the steps have a big difference from one to another, I would prefer their variation to be much smaller.
Furthermore, some varieties leave no residue at all, while others leave up to 4g of coffee (that's when I get a strong slap).
Regarding noise, you can't call it silent but it's not noisy either.
Anyway, the aroma of freshly ground coffee is incomparable.
Any pre-ground coffee I bought didn't satisfy me, and not all coffee shops have the desired brands.
That's why the purchase was worth it, I have tried over 10 varieties and I continue to do so.
I would say it's an honest grinder with limited capabilities, but the final quality I achieve fully satisfies me.

P.S. The package includes:
- coffee collection container for 12 doses (with anti-static walls)
- burrs for modifying the grind size
- drip tray for collecting coffee residues
- plastic adapter-funnel for the portafilter

Update 07.10.22
After a year and settling on grind size 8, the grind started to deteriorate
so I decided to play with the burrs. I added 2 and ended up with a grind size of 21, in order to get
the right coffee at the right time.

I have had the grinder for 3 months now, using it daily for at least one coffee. The grinder is suitable for espresso, so I will talk about the settings there. The product is excellent for home use. It has a 250-270 gram container. For 100 euros, it has stainless steel conical blades that are hard to find at this price. Inside the box, it comes with an extra cleaning brush that is more useful than you might think. It also has a coffee collection container and two adapters, 51 and 58 millimeters, to grind directly into the portafilter and prevent coffee from spilling. It also has three stainless steel rods that simply lift the central blade to make a finer grind if you reach the first level (fine) and it doesn't grind finely enough, which is a bit difficult. In terms of construction quality, it is decent. The grind depends on the coffee variety you have, so you need to find your preferred setting. No one can say that you will consistently grind at 4 for espresso, but it will work fine for any coffee you use. It has moderate coffee retention, meaning that 1 to 2 grams, as another person mentioned, might fall off with a couple of taps on the lid. The only negative thing I have noticed is that the grind settings have quite a distance between them, for example, from 3 to 4, but it changes the grind quite a bit. Also, during the grinding process, the vibrations can change the grind setting. With some adjustments to tamping and being careful with changing the setting due to vibrations, the extraction is easy to achieve. In conclusion, it is the most affordable option for its price, considering that the cheapest stepless grinder is around 280 euros, where you will have the precise grind you want.

I bought this specific grinder a year and a half ago and I never regretted it, as the quality of my coffees has significantly improved. I chose it after reading several user reviews, here and elsewhere on the internet, and it is within the budget I could afford. Most users, including myself until recently, ignore that the most important machine for enjoying good coffee at home is not the coffee maker but the grinding mill. Of course, I do not mean that the quality of the coffee maker is irrelevant to the final result. However, from my own experience, the grinder has a greater impact as it allows you to have freshly ground coffee every time. Coffee loses significant aromas 15 to 30 minutes after grinding. Therefore, the result is always compromised when using pre-ground coffee from a store or supermarket. Its functionality as a grinder has been flawless as long as I have had it. It needs frequent cleaning as it retains coffee residues. I clean it every 10 days or so, making 1 to 2 coffees per day. It may need to be cleaned more often, but due to lack of time, I don't do it. I try to shake it as much as possible to prevent it from retaining too much coffee. Cleaning is not difficult. There are videos on YouTube and many instructions online, in forums, etc. The grinding levels are numerous and can be even more if you use the wheels included in the package. Overall, it is a machine that I highly recommend, I believe it is worth every euro you will spend.

P.S. I would like to add that I needed clarification once and contacted customer service, and they were very helpful.

I bought this specific coffee grinder as I saw several good reviews and it was within my budget. Overall, it is very good, sturdy, and has several grinding levels. It struggles a bit on the finest grinding level, but I think that's why it has the additional rings, which I haven't used yet. I grind espresso at levels 5-6 and I want to experiment with other grind sizes.

I was surprised by the lack of instructions and explanations for the contents and parts of the device. The included instructions were simply ridiculous, there were objects in the packaging that I had to guess their purpose, and there were no explanations even for the necessary disassembly of the grinder for cleaning and reassembly. The first time I opened it and reassembled it to close it, something wasn't properly inserted and it produced very coarse coffee while also throwing out pieces of beans. After some trial and error, I found the issue and it works fine now.

The most serious flaw I find, although I know it is a very common problem with all grinders, is that it retains a significant amount of coffee during grinding and requires a good shake to release the ground coffee, but still not all of it. It holds quite a few grams. For example, once when I didn't shake the machine to release all the coffee, I put in 18g of beans and got 23g in the chamber!
Apart from the "retention" issue, it is a good grinder that is worth it for anyone who wants freshly ground coffee at home.