First of all, I will say this was a nice addition to the Logitech G Products. I currently own the G502, G502 Lightspeed, G910 keyboard, G933 headset, and Powerplay Mousepad. The only reason I am giving this a one star is because of the software needed to download to program the mouse. I have a pretty dang good computer but the second I open the software my CPU maxes out to 99% usage, everything in the program is non-responsive and it will just infuriate you. If G-hub sticks aroud I will never by a Logitech accessory again. If they make G-hub not pull your hair out bad I would switch this to 5 stars.