I've been using these for a couple of weeks now. We shot a review video a while back, something happened and we lost files (oops)... We cut bits and pieces from the first review into this one. It's a little choppy but it should give you an idea as to how these are.
I am happy that I waited. I have been gaming, editing videos, and going through my music collection. I usually use gaming headphones for a while but I always end up going back to my Sony studio headphones. However, these have a better frequency response range and much deeper bass. The studio headphones do seem to have more clarity in the high frequency range but I have tweaked the eq and am very happy with the Diablo III Headset.
I tried several different settings with the mic until I found one that worked. I also found that it sounded a little better if I bent it away from my mouth a bit.
All-in-all, it's a solid headset. I'm listening to some metal on them now.