RE0 has had a lot said about it. The fact that it's the third most wanted headphone here says something, though perhaps a misleading amount 
Anyway, I might be buying one this weekend so I get it soon after finals. Supposed to be one of the most neutral IEMs, which results in it lacking bass quantity compared to others. Also supposed to be very detailed for the price, with great treble and bass quality. Slightly recessed mids, fixed with a small mod removing the earwax guard. Very micro-phonic cord though, so wear it over ear style. This problem has been fixed a little in the newer versions (which I assume you'd get if you buy directly from them) but I've heard it's still there. Free shipping on Amazon from a different seller
, but I don't know what version you'll get or if they're trustworthy. Might be worth it just ordering from Head-Direct directly.