The microphone's too quiet (when talking maxes out at -12dB, generally gives -24dB), but that's always the case. The ear plug attached was too large, but thoughtfully they provide a smaller one as well. Oh, and the range sucks, but given that I had the dongle in the back of my PC that's not too suprising. Range is better now I've got the dongle on my desk.
It's actually possible to play music through it too, though it sounds like an old AM radio.
