Support was ultimately unhelpful. This was very frustrating considering this mouse costs more than 100 dollars, and fails very quickly. This will most likely be the last razer product I buy.
I have owned two razer mambas, one normal and one 2012 version; The tracking is amazing when it works, and the comfort in a larger hand is unmatched; When it was working, this is my favorite mouse of all time
The driver software and firmware updates are absolutely terrible, and make the mouse unusable; After having it working for about a month, it quit tracking completely; Mouse buttons respond, but tracking does not.