This mouse combines many positive points: it is precise, elegant, furnished with all the class can provide Razer compatible with synapse and most importantly, it is comfortable. Although sometimes the hours spent using it I've never had pain in joints, while my previous (Naga Hex) caused me such pain even in less than an hour.
It is however very little customizable, not weight, impossible to remodel the manner of a RAT
It corresponds exactly to my expectations, a perfect product for me.