Excellent. I can no longer use my old mouse. I use it daily for at least 8 hours. The buttons are silent and very light to press, without tiring the hand at all. The forward/back buttons are not silent, but they work very well. I have a small hand and the mouse fits perfectly. I don't know if, due to its color, it will get dirty more easily over time.

Perfect in use.. one star less because the white one I got gets stained with use and doesn't clean.. however, my wrist stopped hurting and I use it heavily..

It’s unbeatable, I have it in black and it has saved my right wrist.
I haven’t changed the battery in about two years.
When I saw my friend struggling with her old one, I got her the pink one without a second thought and she’s enjoying it too

The left click of the mouse after 1 month of use requires a strong press to work. Ergonomic but not recommended.

Very good quality both in the materials and the keys. I have no problem with the mouse and I use it daily.

What I didn't "feel" is its ergonomic aspect. It's not uncomfortable for me, but I haven't noticed any advantage compared to a conventional mouse.

Sometimes it freezes for some reason, but overall I like it a lot. It has saved my hand. I wouldn't go back to a conventional mouse.

The mouse is fine, but it didn't suit me, and that's for two reasons:
1) When I clicked (especially the middle click on the wheel), the cursor would move. To keep it from moving, I had to apply pressure with my thumb on every click, which was tiring.
2) It's tall, and because the way I work requires frequent switching between keyboard and mouse without taking my eyes off the screen, I kept bumping it and had to put it back in place. The alternative was to lift my hand higher with every movement, which was also tiring. So I went back to the M650L, with which I don't have these two problems, even though it's less comfortable than the M330 I had before.

Very good and it relaxes the hand!

After a month of use, I am generally satisfied. It took some time to adjust, but my daily life improved regarding hand strain.

Positive
Convenient for the wrist and ideal for smaller hands. Very good battery life and easy to use.

Negative
After 2 years the left click broke and mice generally can't be fixed so I had to throw it away :/
Logitech's support didn't help at all.

Very good build quality for the money you pay (I got it for 50 euros during Logic days so I don't really know if it's more expensive normally). I have medium (almost large) hands and it fits much better than the more expensive vertical one. I really like the 2 central buttons as they are silent and help my index finger, which is in pain. The rest of the buttons need improvement, as does the scroll, but that doesn't mean they are bad. Finally, of course, it can't be compared to a premium mouse, but for better ergonomics and hand comfort it's an excellent choice.

I will try to be brief. In terms of construction and overall quality, I found it very good.

Personally, since I work 9+ hours at the office, I used it for 2 days. On the 2nd day, it started having an issue with scrolling, where for no reason it became overly sensitive.

At the same time, where I had an issue with the nerve in my wrist (which had disappeared), I ended up having a problem with the right wrist bone due to the way you hold it.

Around that time, another issue with drag n drop appeared and I decided to give up on it as I never managed to adapt.

Because it fundamentally changes the way you work, I would suggest to anyone who wants to buy it to first try a cheaper solution and, if it suits them, then buy it.

One of the best Verticals I have used, the only small issue is that after 3-6 months due to dust/dirt/hair the left click stops working, but I have bought two and I open one or the other for cleaning and after cleaning it works like new.

after a few months the left click breaks as many people say.
it takes many presses to work.
no matter how convenient it is, what can I do with it...

This is the first vertical mouse I have used. In general, what they say about the correct hand position is true.
I bought it because I started noticing signs of tendonitis in my right hand from prolonged use. The signs disappeared as soon as I started using this particular mouse.

I would say it is just about small for my hands; I consulted Logitech's guidelines for choosing a mouse.
It takes one AA battery which lasts for months.
The buttons are silent like on the MX Master 3S; some people don't like the feel because they don't make the classic click (only the back and forward buttons click), but it doesn't bother me at all.
I have it connected to 3 devices; the button is on the bottom and is a minor issue if you want to switch devices constantly.
It also includes the Bolt receiver.
It does not require Logi Options+ for basic functions.
It supports horizontal scroll by combining the back button and the scroll wheel.

I've had it for a month. You get used to the mouse very quickly. You can adjust the buttons and speeds to your liking. The 2 side buttons make a sound, but the main ones do not. The right click seems a bit sensitive and may not register well if you use it quickly, but that might just be my impression due to the quietness. For €50, it's very good. In chain stores, it goes for 80+.

I've been using it for less than a month. So far, I haven't had any problems. It's for medium-small hand size. For me, with my large palm, it still does its job.

The most perfect thing!!! You wonder why for so many years you worked with regular mice. The best for the wrist! It's worth it!!

It is very modern and is user-friendly mainly if you have a problem with your hand. At first, it is a bit difficult to get used to it.

I read the other reviews and thank God I didn't have any problems, neither with buttons, nor with the battery, nor anything. When my brother brought it to me as a gift to help me with a problem I have with my fingers, I picked it up and said how am I going to hold this, there's no way it will work for me. He told me you won't take long to get used to it and that's exactly what happened! Not even half a day of use and I had gotten used to it! A graphic designer friend of mine told me the same thing after she saw it on me. In the approximately 2 years that I've had it, I feel that it has indeed helped my hand, it hasn't strained my wrist! Well done, Logitech! Thank you, buddy!!! (Just don't get the white color like I did, it turns black, and in the spots where it has a material that is like..."rubber" it doesn't come off, it's like it absorbs it!)

A bit small, although I have a small hand. The left click does not respond well. The scroll does not change tabs like the MX Master 2S. Ergonomic is the only advantage and silent keys.

It is very good for the wrist. Silent. Battery lasts for months. Sturdy.

The problem is that after 1 year the left click, middle click, and occasionally the right click stop working. This is something I have seen in countless reviews and it seems that the product is problematic or it has been designed to break after a year.

Excellent mouse.
A bit strange at first and different but later very convenient and hard to replace..
The buttons are silent and the battery life is long which will satisfy especially in a work environment!

17/09/2024: Ergonomic mouse with a beautiful design. At first, it may take a little time for the hand to get used to the shape, especially for those who haven't had something similar before. Other than that, once you get used to it, it's just fine.
Update 15/12/2024: I had to change the battery quickly and I found it strange, as the previous mouse I had lasted me for years. I don't know what it's due to, however, it remains a very good mouse.

It takes a little time to get used to it, from there on comfortable, ergonomic, and quality. The app that accompanies it is also very good

Very good! I have arthritis as a result of an autoimmune condition and I was really struggling at work with the mouse. My hand is not completely well, of course, but compared to before, much better.

After 15 minutes of inactivity, it seemed connected but only worked again after a restart. I tried it with and without the accompanying app, power management, etc. I switched back to the ergonomic Noname from the eShop which has slightly worse grip but works. Wherever marketing enters, it just ruins the products. Let the engineers do their job!

I recommend it to those who work long hours on their computer. The hand does not get tired, as the wrist is in the correct anatomical position.

The mouse is suitable for people who work long hours on the computer and suffer from tendonitis. In my case, it dramatically reduced the problem.
The build quality is excellent, quite lightweight, and its basic keys have a very soft and quiet press. It can also be connected simultaneously to 2 different computers via usb/bluetooth.
On the downside, the auxiliary keys have a very poor feel and the scroll wheel has a "heavy" press. Also, the connection with bluetooth often does not meet speed and accuracy specifications.