Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Coby Cassete Adapter

I bought this cassette adapter roughly 3 weeks ago and it has already stopped working properly. The best this device can do now is to play my music through one channel, (right or left) and that is if it works at all. I totally regret buying this thing, I'm just thankful that this lesson in car audio wasn't so costly.