I just got and installed one of these and have to admit it's pretty slick. It plays music from my Macs or PC with no problems.
I got a free digital cable, so it's playing PCM, which is to say it's no worse than the bitrate this stuff was ripped in. I have been encoding with Apples AAC and Lossless encoders and can't complain.
ANybody else using one of these and care to comment on the quaility of the audio stream?