i'm using and mainly for wow.

not for ppl who familiar with large mouse, the mouse consider medium size, smaller than death adder or Logitech G5

the 12 side thumb buttons have to take few hrs to get use to it...sometime will miss click or click 2 -3 buttons at once if u have a big thumb somehow for the buttons 10, 11 and 12, is not easy to click as you wish, its consider "inner" side of your thumb angle.

the software or addon whatever u guys call, easy to use if u can figured how the in-game keybinding and others wow addons, should not a problem for you.

Overall performance quite good, especially for wow power users who use lot of macro key bindings.