Used a Naga 2012 for a while. Ended up breaking because Razer products have shitty build quality. I wanted to get a different mouse that has higher performance for everything else, especially CS, so I got the Zowie FK1. However I also was so acquainted to the Naga, I copped a Naga 2014 too, and use it only for WoW (I don't like how the Logitech G600 feels at all, with the third button and stuff).
Edit: With the Zowie I got a Zowie Camade (mouse bungee, google it). Before I would never think about buying one of those things, did't understand the need at all, but because it was free I tried it out, and it's amazing, don't feel the cables dragging whatsoever and am tempted to get one for my naga.