The keyboard itself is quite nice although the keys are a little hard and a little tighter but big problems with the drivers. Despite several re-install from the Logitech website and testing several hacks found on forums, freeze the display after a moment on the two sessions of the computer. Reboot necessary each time. I saw a comment before buying who complained of this problem, I'll have to listen. Message left on the Logitech support, not reassured as far !! After two months with the sav and multiple shipments of files from my pc, leave me cold fall without solution with a keyboard that does not. FLEE this keyboard !!!!!!!!!!