Got the mini keyboard buy for my Xbox360, since I do not use original controller and thus the Chatpad of MS does not fit. Basically works the keyboard. Some key hook now and again a little. One should not be too close to the receiver, as it otherwise swallowed inputs or double takes. Practical storage of the receiver is in a mini-drawer on the keyboard back. The battery life until the next charge is with me a few weeks - but certainly depends on the intensity of use from. Impractical is mounting the transmitter in the keyboard! The station is located on the side with the touch pad and not in holding direction above.
For occasional tap on the Xbox360 is sufficient. Etc. For use in a living room PC I would not take them.