Pros: Great build quality Tons of customization features Very responsive and accurate Good software

Cons: Took a while to get used to, but very worth it.

Overall Review: I was trying to decide between another Razer (My past 2 Razer mice broke within 3-5 months of buying them, but they were very good mice), Logitech, and this mouse. I decided this mouse because of the good reviews it had and I'm glad I did!