Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Noisy and Works Sporadically

I had my cooling stand about a week when it began making noise. After 2 weeks, it began working off and on and did very little in the way of cooling my laptop. I have had it about 6 months now and it still works off and on and I still use it to keep my laptop raised from setting directly in my lap. That is really all it is good for.