I just purchased this unit and so far I love it. I find a big difference even in Apple Lossless 44Hz files from iTunes compared to how they sound in the iPhone. I especially love some of the HD stuff I have purchased from HDTracks. Pink Floyd's Dark Side of the mood, for example, is amazing! (I have the iTunes version, but this blows it away).
Anyway, I just finished transferring all my iTunes songs to the X5 and of course did the "Update Library" thing. However, when I look at music my Genre, it seems to be getting the Genre's wrong on many many songs! For example, I go into "Soft Rock" genre and I see songs that, in iTunes, were tagged as "Alternative" in iTunes. Does the X5 not recognize the genre tagging that iTunes does? Do I need some other program (I have a Mac)??