I have the Razer chroma (and I'm happy I do. I lovehow the lights interract with different games I play).
For my mouse, I use the 2014 Razer naga, which I only use #5 since that's where my thumb sits on it for quick melee (just changed it today after realizing how awkward my crouch was and how it took away moving left because of how I moved my pinkie down to ctrl...)
Naga is used mainly for RPGs, like WoW.