With Windows 7, I often had to uninstall the complete driver and reinstall it so that she goes again. Now with Win 8 the mouse increases simply so from time to time. An I & off the mouse help out there and she goes again. This is absolutely annoying.
Previously had always Microsoft mice and was always satisfied. This model can not recommend it.
Quality: good
Feel: good
Operation: deficient
Endurance: holds quite a long battery operation (I never actually hit the power switch off)