Brought for the keyboard, keys take more force to depress than most which took me some getting used to. Mouse has really loud clicks and drives me nuts, would buy the logitech m331 just because of this. They only advertise 6 months battery life which is pretty pathetic for the mouse because others manage 2 years. Mouse has high dpi and no switch, means the cursor moves way too fast and you have to constantly change sensitivity settings in the os. Conclusion: keep the keyboard, ditch the mouse.