Anyone tried/currently use the Cyborg R.A.T. 9 mouse for SC2?

I badly need a new mouse, but I need to find one what will really fit well and feel good in my hand (I have a chronic wrist/hand injury). The Cyborg mice (or RATs...haha) seem like they have good gaming specs while still being super adjustable ergonomically. However, they are also spendy, especially when compared to other awesome mice from companies like Steel Series and Razer.

Has anyone tried any of the RAT gaming mice for SC2, and have you found them to be worth the investment?

Thanks!