Listening to them right now, they're pretty nice.
There's definitely nicer out there but for their price-range they seem very good.
I've had mine about a week and about the most useful help I can give is to say I think the felt-mod and burning them in helped, I think they sound nicer now than they did day one.
I'm much less qualified than the other people reviewing them online but I'd say they're well worth what they cost.
Don't expect them to be as good as much more expensive earphones though, my friend's HD595s are definitely better. They cost a lot more though and I could recable the RX700s to improve quality again so I can't comment until I've done that.
Edit: For gaming they're nice, most people will recommend AD700s for gaming but if you've looked up reviews the bass on the ad700s is supposedly extremely lacking. They're meant to have a crazy good soundstage though.Edited by Mike-IRL - 8/9/11 at 8:06am