My friend used to be a massive razer fanboy, he said to get the deathadder, because it's the best mouse ever, I didn't believe him.
Few months later, he has more logitech than anything else, and say the G502 is the best mouse he's used.
Razer products are overpriced imo, yes the deathadder seems like a good mouse, but most of the praise comes sponsored esports guys.