Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good when it works

I bought this item not to cool my laptop, but to provide some insulation from the heat when it's on my lap sitting in a chair. I'm very satisfied with it's being able to accomplish that. HOWEVER, the cord ended up breaking after a few months. Targus replaced it at no charge which is good, but still a hassle. Now one of the two fans has started making a racket when I first turn it on. After a bit it settles down but very noisy at first.