Pros: I've been using a regular kone for about 2 years now. Got this for my new gaming rig and it was amazing. Seriously perfect improvments to the original kone.

Cons: mouse wheel broke after 1 month. Mouse did nothing but sit on my desk. My original Kone has been to Iraq and back, dropped, thrown around, and basically been treated very badly. Still using my original Kone it works great

Overall Review: The mouse broke just after Neweggs RMA expired. They told me to contact Roccat. Roccat told me that it was covered under warranty but that I need to do the warranty replacement through Newegg. This went around for weeks until I finally gave up.