Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great initially but then,..

I Received the item very quickly from Amazon. It worked great initially but the audio on my receiver started "cutting out" after a week or so. After some experimentation, I determined that it was in fact the switch that was causing the problem. I gave the switch 2 stars because it did work initially, but unfortunately, is virtually unusable now after only 3 weeks! I am hoping that perhaps I just happened to receive a flawed switch.