Personally, I'd suggest staying away from any Razer peripheral primarily since it's overpriced marketing gimmickry products of which you're paying for the badge and not the technology. Their software suite is also flawed as well often requiring multiple reinstalls of the suite to get some functionality.
If you're seeing it for a good price slashed off it's original then go ahead but for that amount you'd be better served going for a
sub 50USD mouse provided it's only for FPS gaming.