Love this app. Love that it supports full-screen in Lion. I have not had issues with audio drop outs or crashes. Plays nicely with processor and memory usage. Features I would like to see added that would make it five stars:
-ability to use the play/pause button on the keyboard as iTunes, Spotify, etc do
-use the standard spacebar hot key to play/pause while in the app instead of using it to star/unstar channels
-ability to disable the menubar icon
If the developer were to implement these features and throw this app in the Mac App Store, I'm sure s/he could get < = $4.99 a pop for it. Of course, I'd love to see it stay free, but if I'm going to request features, obviously I'm willing to pay for the development effort!