Having seen this player in action and being thoroughly impressed with all of Sony's music players to date, I've just taken the plunge and bought one of these.
At this point, Sony has decided to sideline the Atrac format in favour of the more "mainstream" approach of the windows 'Playforsure' format. Whilst this makes a good deal of sense for them I suppose, I have grown up using the heavily criticised Sonicstage program. I've experienced none of the endless problems I've heard others suffer from - I've used it since the days of NetMD! The version I'm using now (CP 4.0) is a perfectly acceptable music manager - intuitive, dead simple to get to grips with and fairly speedy. I'll admit that iTunes has a library many times the size of Sony's Connect download service but if you're like me and just rip CD's then that's not going to bother you one bit. People, don't run away from Sonicstage!
I've written quite a few reviews for MP3 players (I tend to buy quite a few!) and whenever I review a Sony product I always seem to start with standing up for Sonicstage! Anyway, the player itself...
People seem to put it at the same level as the New Nano model of iPod... That's just wrong I'm afraid - Superior sound quality only Sony can deliver, an amazing 2" screen (Great for watching Reservoir Dogs on the tube when the PSP didn't quite fit in the bag!) and excellent build quality with 30 hours of music on a 3 hour charge?! It could scarcely be better... Is there any reason you shouldn't buy one of these?! It'll play almost any format under the sun (it doesn't play DRM'd tracks though - which is the only negative point I can think of!) and it'll look much better in your hand than any iGadget...
In short, a fantastic piece of kit... Enjoy!