Pros: Wireless range, batteries duration, keyboard keys
Cons: Software support
Mouse is a little smaller now than i would like to, but it still is of great value. Not to be confused with a gamer mouse though.
Batteries duration is awesome. Keyboard's batteries go for about 6 months with me, and mouse's for about 3. The other wireless solutions i owned i had to swap batteries every month or two.
Software support isn't that great. The keyboard's shortcuts doesn't work in their full. For instance, in windows 7 the calculator shortcut doesn't work. Volume works like a charm, and i don't really need the others