It's funny how I keep coming back to Audion whenever I think the MP3's being played back through iTunes are suffering Audio Quality problems. Everytime, the Same file will sound so much deeper and fuller through Audion. This is with a USB to optical out from a Powerbook hooked up to my Yamaha reciever and Vandersteen speakers. iTunes MP3 playback has very poor stereo imaging, lack of low end bass and just sounds thin. The only thing that can be concluded is that Audion has a far superior MP3 Decoder. I also love the available Skins. What I don't like is the more combersome File Management than iTunes which really excels here. Audion has been more prone to crash as well(Although I am using it with an older Lombard PowerBook, File Sharing to a G4 over Airport Extreme which is really pushing the ole G3). It sure would be nice to see Audion update this app with more iTunes like File Mgmt(Playlist Pane)