i have the apple in-ear headphones, and i can't really recommend them, though for a completely different reason. here's my abbreviated review:
pros:
1.) pretty good to good sound. i didn't really have a problem with the bass. of course, i'm not too big a fan of massive bass in my ear-canal, but that's just me. even on my bass heavy hip-hop/gangsta rap, the bass levels were more than adequate for me
2.) they are FAR more comfortable than the standard ipod earphones. the standard ones tried to enlarge my ear and they hurt after wearing them for 15 minutes. the apple in-ear headphones are quite comfortable and i've listened to them for the entire life of my battery with no problems.
cons:
1.) only one really: they never stay in. i read the reviews and for some unknown reason didn't believe that they don't seat properly. well, they don't. i'm constantly having to reseat them in my ears. i've grown used to it, and it's not extremely bad, but the silicon covers are slick and feel like they're sliding down. people probably complain about the sound quality because of this. they slip down and the seal is broken, even if you don't feel it.
i would suggest going with the $40 sony in-ears instead, especially if you want more bass. the reviews at ipodlounge (as someone mentioned before) are reasonably accurate. don't go with the included headphones though, they suck. good luck!