Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Quiet, keeps things cool!

My laptop is ALWAYS running. For the last 4 years I've very rarely shut the thing down, usually because I'm always on it! Thus I of course needed something to keep it from frying - so I got this, and so far so great! It runs quietly on two different settings, High and Low. I keep it on high because I can still barely hear it. It easily plugs into my USB and even has a USB connector on that so that it doesn't take up any space.I have absolutely no complaints about it - it's quiet, doesn't make the computer run slower, noticably makes the laptop less hot. I shopped around and saw some other notebook coolers, this one was the cheapest and has worked so great I wouldn't recommend anything else!