They are way more comfortable for me than my G35 or the G930 but the mic issue is a show stopper for me.
I've played around a bit more and I almost think it's codec related. For some reason I don't have any issue in DOD:S but in CS:S, 50% of the people hear the feedback and the rest don't. I finally just uninstalled them. Tired of hearing people yell at me that my mic sucks. Returning to Microcenter and I may pick up the analog version.
Did you try the solution mentioned a few posts earlier? It did appear to work for me, so it may be a good idea to try if you like everything else about the headphones.