The problem with using one for an alarm clock would be that if the power blinks or the computer freezes or the slimserver service stops, or you get some brief wireless interference, it doesn't always reconnect to the server automatically. If you're using it as an alarm clock, that means you're late for work.

Also, by the time you attach some amplified speakers, it's taking up a lot of room on your nightstand.

This experience is with the previous hardware version. The newer one may be more robust.