I have been using this mouse for over 4 years for my office job. I personally notice a huge difference with this mouse. I use this mouse to help eliminate overuse or hand pain with a regular mouse.Quality - amazing quality mouse. It lasts a very long time.Feel - this mouse feels like a handshake. It's immediately comfortable. The mouse does more work navigating a computer than your hand and wrist does.Compatibility - I have used this mouse both with a laptop (MAC & Dell) and an old PC computer. As long as the USB connector is plugged in, it immediately responds and operates.Accuracy - This mouse is very accurate.

This one is for small or medium hands. My hands aren't very large, but this mouse is too small for me. Otherwise it's all good.

There's no need to elaborate more on how ergonomic it is. I am writing this review more than two years after my purchase to praise its great quality.

I bought this for my wife, whose hand it fits perfectly. Many other nice mice, including from Logitech, were too uncomfortable for her. This one is the wonderful exception. Long battery life, and she likes pink!

This is the best keyboard and mouse combo. The keyboard is very comfortable and the wrist rest is really soft. The vertical mouse is perfect to relieve wrist pain from using a mouse. Highly recommend this set!