The mouse moves no problem with windows7. The size is relatively large, which should appeal to large hands. The cord is very long. The finishes are impeccable. The buttons are well placed. I particularly like the left mouse buttons (previous / next from a web browser) and the button beneath the scroll wheel which is used to vary the speed of the pointer without using the mouse properties. I use it on a rather hard surface for the optical mouse: a non-uniform and black background. I have no problem with the pointer over this surface (unlike a Logitech M235) My only regret is the rather violent blue light scattered by the LED located in the mouse. The "G" lights on the top and fake grills are lit on either side. It's pretty annoying in a dark room. BUT just download the software at logitech.com/support/g302 page to configure the lighting as the soft souhaite.Le also allows many other settings. It's very well done.