I owned a great Razer mice, the Razer Deathadder, but since my grip isn't really palm, it never really fitted me. Nowadays I have a mice that really fits me (Corsair M60), but I don't have anything to complain about my old mice.
Besides, I still have a Razer Goliathus mousepad, which in my opinion is damn great.
It's not like we hate Razer. Just that we dislike their keyboards since they're not worth as much as they're trying to sell and their quality isn't as good as advertised. I mean, if Razer changed their OEM to Costar (or hell, even maybe PLUM), we certainly wouldn't be bashing them on this thread.