Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great! When it actualy works.

I bought this because I loved optical mice. But after about 6 months I began to have transmission problems and it kept freezing up for a few seconds at a time. Then minutes, then froze up for good.I should of know that a microsoft product wouldnt last long. Right out of the box I could tell. Very cheap feel to it. Good thing I kept my old mouse.Im sticking with Logitech. They make much more reliable mice and I never had a problem with them. So avoid this microsoft one and stick with logitech.