I bought one of these about a year ago for maybe $10 more, it is a solid Windows multimedia remote but it has some pretty big downsides:
1. The optical sensor is similar to a BlackBerry sensor, but on a full 1080p or higher Windows desktop it is VERY jittery and hard to control and requires multiple finger lifts and resets to move around.
2. Drinks batteries while not in use if you do not turn the 3-setting power function to completely off (On/Off/Backlit).
3. Lacks F-keys. Can be annoying for any app or games where you rely on F keys. Fn button + 1-0 do not trigger F keys like some other compact units or laptops do.
Typing however feels very good, similar to a BB, and the built-in L/R click and vertical scroll are extremely cleverly integrated into the unit.
Personally, if you want better typing support and can manage a larger input device, I would go with one of the compact keyboard/trackpad options available from Logitech. K400 for about the same price or the new TK820 for about 2x more would both be good choices imo. We use the K400 now over this 5902.
http://www.amazon.com/Logitech-Wirel...=logitech+k400
http://www.amazon.com/Logitech-Wirel...=logitech+k810