funny you mentioned these. I was in an Apple Store the other day and got a chance to listen to these.
they're OK. they were being fed directly over an ipod touch so obviously there's no headphone amp involved. with that in mind, my issue with the sound was that bass seemed a little uncontrolled and boomy. detail seemed fine but it didn't blow me away.
perhaps they get better with an amp. I know that my D5000's bass gets much better when amped.
for full price, I don't think they're that great, tbh but I suppose the price includes the stunning design.
oh, and there were some beat solos next to them that were way, way worse. If i had bought those for 200 bucks, i'd be smacking myself.