Experience after a year of intense use. Ergonomic, very good grip, and truly comfortable in the hand (working at least 8 hours a day on the computer). Unfortunately, after a year, it has started to stick and the left button requires a strong press to respond. Okay, it's cheap, but I probably wouldn't buy it again

Cheap and good ergonomic mouse. Same design as an Anker I had.
Compared to the equivalent Logitech, which is much more expensive, it only lacks in the quality of its materials, without meaning that it is cheap.
Good accuracy, three DPI settings, goes into idle mode if not used for a period of time (a button needs to be pressed to "wake it up"), does not tire.
Requires two AAA batteries (not included in the box).
Overall, very good and better than the Logitech.

I had bought 2 about 1 year ago, maybe not even a full year has passed. One worked intensively, the other very rarely (on different pcs by different users). And both just stopped working around the same time. Coincidence? I don't think so. While it was working, it was ok, but it gives something extra and you get something that will last longer in my opinion.

I bought it because I have been using the company's wired version for years and I decided to try eliminating the cables from my desk.

The pros are that, like the wired variant, it is very comfortable and you get used to it quickly. Its weight is okay (a bit on the heavy side due to the batteries), but it is also suitable for gaming (not extreme, obviously).

As for the cons, the wired version from the same company has much better tracking.

In the end, I stopped using it because I had to try 2-3 times to hit icons.

Overall, it is good for a first encounter with this kind of "mice" due to its low cost. It works satisfactorily on a mouse pad but still "sticks" at times. Obviously, we are NOT talking about gaming in any case. Its response is tragic in gaming conditions and this can also be seen in office work if some quick movement is required.

Update: Within less than a year, the wheel broke.

I had no prior experience with a vertical mouse. It takes a few days to get used to it. Now I think I will never go back to the old classic mice.

Regarding this specific one, it fits very well in my hand. On its top side, it has a "DPI" button through which you can adjust the pointer speed in three levels according to your needs at that moment.

On the left side, it has two buttons set to "Forward" and "Back", which personally don't serve me for anything. It may be something that can be changed. I haven't looked into it yet.

On its right side, it has the classic 3 buttons. Personally, I find a major drawback that the Scroll is very "hard". It is not easily pressed with the middle finger and I have to use the index finger. Also, in just 20 days that I have it, when I scroll up/down, there is a creaking sound. Obviously, it can be solved if I open it and put some oil, but I imagine that this way the warranty is void.

For an affordable vertical mouse, it's the best value for money. I noticed an improvement in my tendonitis within 10 days.

Immediate relief from wrist discomfort.
Within an hour, I became familiar with its use.
In my opinion, it is a unique solution for every user with long hours on the computer.
I wonder why it is not the standard for designing every type of mouse on the market.

I immediately ordered a second one for the office.

More than a year of use. I expected to need more time to get used to the ergonomic design, but it came and fit in my hand very naturally. Low battery consumption. If it can be considered negative, the fact that it's difficult to go back to a non-ergonomic design.

Without any mishandling, it broke down after a year and a half of use, not worth the money, if it worked at least three years maybe.

I got it because I have a problem with my wrist, but from the first moment I realized that it has very tight buttons (mainly the left click) resulting in wrist strain. So, I returned it.

It really fits well on the wrist and is as comfortable as it promises. It has 6 buttons and low energy requirements. I use it for 8 hours a day for design programs. It doesn't strain my wrist or cause wrist pain. The buttons make a slight noise like most mice, as even the silent ones make noise after a month. Additionally, it is at a super price. I highly recommend it.

I bought it looking for an ergonomic mouse that wouldn't strain my wrist, my hand in general.
With all the usual mice, my wrist would hurt after prolonged use and the pain would take a while to go away even after I stopped using the mouse.
With the Perixx Perimice 713 Ergo, all the pain went away as you hold it in a relatively natural hand position. If it had more right-handed tilt somewhere between 20 and 30 degrees, it would be perfect, but even as it is, it relieved me of any pain in my hand, with the help of a mouse pad (which I bought separately) that has a wrist rest. It also has a soft wrist rest in general for the wrist to rest on.

The initial impression that it has made on me during the first few days of use is very good - no strain on the wrist, easy adaptation to its ergonomic design, and a great advantage is the presence of a sensitivity (DPI) adjustment button and Backwards-Forwards buttons.

It has been 6 months and I now feel like it's an extension of my hand. The shape that initially felt uncomfortable and I would hit every time I tried to grab it doesn't seem like that anymore.

After 5 years, an issue appeared with the scroll button, which, while scrolling in one direction, makes random movements towards the other.

P.S.: I use rechargeable batteries that last for about 2 months of daily use.
P.P.S.: It's not bad for gaming either.

I got it as a trial to test the tilt of the hand, which is different from that of a regular mouse. While it is a bit uncomfortable at first, it eventually naturally adjusts to the tilt of the hand. One issue I have noticed is that because it is tall, you cannot simply grab it by moving your hand, you need to lift it slightly, which can be tiring for those who frequently switch between keyboard and mouse.