I have owned this keyboard for about 1.5 years, with quite heavy use, daily, gaming, programming, editing, Obsidian, I’ve used it full-on, so here we go:

+ For its price, it’s hard to find such quality, heavy, iron construction, no cheap plastic nonsense and stories.
+ I have the Red Kailh switches, and in Obsidian where I write a lot and keep records for many things, it has never tired me out. Its keys are amazing, great feedback, nice non-fatiguing 'mechanical' sound.
+ 1.5 years, full use, not a single key has faded, several keys have of course gotten quite 'shiny' but none has faded.

Now for the negatives, which are not really negatives but just one single negative:

- The spacebar has shown an issue within the first year, if not even sooner; on the left side it doesn’t press properly, so if you press it there 3-4 times, it pops out. With a bit of masking tape it can be somewhat fixed, but the permanent solution is a new keycap (in my case it is the keycap) or otherwise the stabilizers, by taking the keyboard apart.

The only flaw in the whole build for me personally from the start was the spacebar, the only key that doesn’t have a pleasant press and for many people also has the problem of coming off with minimal use. It is fixed by changing the keycap or the stabilizer.

Edit: I didn’t write about the lighting, which is also amazing; I keep it permanently on the lowest 'step' and its lighting is stronger than the full setting on other 'brands' I have seen. It also has its own app for the RGB modes and profiles and settings, easy to use.

Purchased for my son mainly because of the price, the other two mechanical keyboards we have at home are the Coolermaster Masterkeys Pro L white and the CK550, both with brown switches, MX for the first one, clones for the second one.
In terms of quality and appearance, the Sharkoon does not fall behind. Equally heavy and stable, just with its bent metal surfaces and basic palm rest, it looks a bit more "playful" compared to the CM keyboards, which are two-dimensional. Its keys are very good and comparable to the "expensive" Masterkeys, they have a nice texture and satisfactory thickness/volume.
The feel is the classic brown switch feel, not very noisy and with a good, progressive sensation. It is similar to the other two keyboards, but slightly more "dull" and "heavy", the CK550 is the most flashy and has the lightest feel out of the three.
On the Sharkoon, the key profile seems a bit more "aggressive", I feel them more closed towards the user, but this may also be due to its slightly higher feet compared to the Masterkeys. It doesn't create any problem, just forget about using an extra palm rest, the keyboard has its own small one and, with its slope, the palm rest is not ergonomic or aesthetically pleasing.
Its software is amazing. After two failed attempts, I downloaded the correct one and it seemed to me that Sharkoon has a separate software for each of its keyboards. It allows you to customize everything, and in terms of extra features, I was very impressed by the number of pre-set shortcuts supported by the keyboard. It has a bunch of shortcuts for the most commonly used applications, and even if someone doesn't install the application, there are still plenty of options for lighting and patterns through the Fn+keys. It clearly surpasses the two Coolermaster keyboards and the Logitech G413 that I had before in this area.
What do I miss? Nothing substantial. Maybe I would have liked the extra USB port that the G413 had, it was very convenient. At €67, the keyboard is very good, it has more functions than the similarly priced CK550 without lacking in other aspects.
Overall, a very good keyboard that fully justifies the money it asks for.

Excellent keyboard for its price, everything that previous reviewers have said is true.
I will only mention the following:
I come from a blackwidow and it takes some time to get used to the spacing.
The typing feel is very good, especially the transition from blue switches to red was quite easy. The build materials seem to be of good quality and the lighting is very nice.

However, the keyboard has a major drawback. After 2 months of not intensive use, the keys have started to make this annoying metallic noise during typing (when the spring is reset). It is very noticeable and annoying on large keys (e.g. spacebar). Practically, typing in a quiet room is out of the question... During gaming, it is not noticeable, but if you try to write a text (for a good amount of time), it requires some strong nerves.

If you often type in a quiet room and are bothered by such noises, just forget about this keyboard.
If it is intended for gaming or used with a headset, everything is fine.

Based on price and competition: 5/5 for gaming, 3/5 for generic use

I have it for more than a month.
In the positives, I will mention:
very nice appearance, nice feel on the keys, the kailh red keys are quite quiet,
it is metallic, it has a long cable length, many lighting programs for the keys or even without lighting for those who do not want it.

As negatives, I will mention:
The bar is supported only on the button in the middle of the bar, so when you press the bar at the edge, the key of the bar wobbles, it does not affect its function, but it has a strange feel and not a good appearance when this happens... I would prefer it to have support on the right and left somehow.

The other negative, in my opinion, as I have children at a young age and they are not familiar with it yet,
is that the keyboard has ONLY English characters, so the Greek characters do not appear on the keys, despite that, for those who are familiar, the Greek characters are where you know them.

I have not needed to remove the keys to clean it because I have a strong electric vacuum cleaner with a brush that makes it shiny!! So I do not have an opinion yet on whether the keys are easily removable and replaceable.

It is definitely worth its money!!

I hope I covered all your questions but let's not forget that everyone's opinion is subjective according to our preferences. :-)