Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Mouse!

This is a fantastic mouse. I play many FPS's and it works great with every game I've tried it on. The software allows you to map all the buttons to keystorkes or even combos with alt-, shift-, and ctrl-, so all 8 buttons can be used in any game. It is smoother than my previous Microsoft Intellimouse, and the cradle/charger/base station is a great solution to changing batteries often. It fits in my large hand well, and the extra weight of the batteries feels nice. Overall a great product.