I have recently purchased these headphones and have been using them to listen to music, and play PC games (mainly FPS). Am very impressed. I thought headphones were headphones in the beginning, but after buying some 'cheapo' ones for £10, and finding them uncomfortable with poor mic quality, this Fatal1ty headset is truly a masterpiece.
The mic is really good quality, normal voice volume records perfectly and is crystal clear over VoiP (voice over internal protocol). Perfect for gaming. The sound quality is also really good. Much better than speakers infact. I find when playing CS:S (counter strike source) its so much easier to hear things and other players around you. Makes it easier to hear which direction they are coming from/the direction bullets are being fired from. Comes in real handy when people try and sneak up on you. Its like having perfect surround sound through headphones :)
The comfort is also a mentionable point. The 'ear muff' bits are like velvet material and are therefore extremely comfortable. I do find however alot of heat in generated. Unlike other headsets these aren't very 'breathable'.
All round im going to have to give this headset a 5 star rating. It really is top quality.
Hope this review has provided some help. Thanks for reading.