Review on 🖱️ KKUYI Ergonomic Vertical Mouse: Rechargeable Wireless Computer Mouse with 6 Buttons, 800/1200/1600 DPI - For Laptop, Desktop, PC, MacBook by Jose Perry

Definitely takes some getting used to. Not only is the angle you're holding it different, you should also change the way you press the keys to minimize sideways mouse clicks and accidental dragging instead of clicking. However, once you get used to it, it will be much easier on your wrist than with a regular mouse. The overall quality is good. The shape is comfortable, the range of different DPI settings is good, and the buttons don't feel cheap. The sensor is decent and I don't notice any input lag. I only have a few relatively minor complaints. The scroll wheel is quite stiff, making it particularly difficult to click the wheel without moving the mouse a lot, although I'm getting better at it over time. The forward and back buttons also behave inconsistently. Some programs read them as you would expect, and some programs, like my browser, read forwards backwards and backwards as well as forwards. I'm not sure what could have caused this and I think it could be a problem with my computer as far as I know. Overall, this is a great ergonomic option, especially for under $20.