Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Blows the competition into the dirt!

OK, I'll make this short and sweet. I have for some time tolerated many different types of mouse, many bought as a false economy - "A cheap mouse is all I need". Wrong! After having seen the older Intellimouse Explorer that my good friend Bazzroid had bought recently I thought perhaps my mind would be changed. However, I came to the conclusion that it was overpriced and unwieldly. A truly MAJOR disappointment! Not so with the new Intellimouse Optical. This revision on the older product now gives both left and right-handed users a chance to experience the delights of 'no-ball' action. Let's just say that after having tried one I had to buy it. My old mouse went where it belonged, in the trash can. My friend Bazzroid took one look at this new model and knew he had to get his Explorer version swapped for the Optical. He's still looking for a buyer. No luck so far! If you're in the market for a new mouse then look no further. Get one - TODAY!