I am a hardcore FPS player and Razer user for many years, I wanted to test the abyssus including no driver required for its use. Result: two dead mice in 3 weeks, both had left button off within days. Yet I am not particularly "raw" with the material, I had never had this kind of problem before.
So overall quality noticeably weak and workmanship I do not know, anyway I throw in the towel and not recommended. I am even more disappointed that I had appreciated the simplicity that reminded me of the good old m100 my debut.
I turn on my Razer Lachesis holding good since almost a year now :)