
I am pleased with a large, but not excessive number of buttons and their flexible configuration, from the simplest system functions to complex macros. Got pros: Pleasant to the touch, programmability of all buttons, soft, quiet and clear pressing, two wheel modes, fits comfortably in the hand Different cons: It's not that I didn't like it, but it's a little annoying after some time of inactivity, if you start working again, 2 small windows appear with the message "Sensitivity value set" and the DPI number. It doesn't interest me at all. I would like to set and forget.