Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does what it suppose to

This is a decent product and does what it supposed to do. I've been using it for 3 months and so far I've had no problems with it at all. The only complaint is that I think it is a little big, would be better if the size is smaller. Also, the chord is quite short. I use it when I go to the library, and have to leave my table to grab coffee or food or something. I wouldn't feel safe to just leave my computer with it if I were in a public place and have to be gone for more than 30 min or so.