Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Interesting mouse

I have never seen one of these before but decided to try it because I was tired of continually having to lift up and shake my old, plain mouse.Well, it was a little larger than I expected when I first saw it. But after having used it for a few days I am becoming more comfortable with it.Its very sleek and precise, and once you have the hang of it, which doesnt take long, life becomes much easier - you dont have to move the mouse at all, just your fingers and thumb.Nice product.