Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Not as good as they should be.

They are comfortable. However they sound quite muddy. I guess I was expecting a little flatter / crisper sound. Compared to my old cheap AIWAs that finally lost an ear - these sorta stink. Also, when put them on, I keep hearing this strange echo, even unplugged. It is like putting your ear to a seashell. Not good. Could be worse, but not good.Edit: after a good year or 2 of owning these, they still work and I am still using them daily. I also think they opened up quite a bit, the sound I feel is considerably better than when I first reviewed them. Also, they are very comfortable, sometimes I just wear them so people won't talk to me. The echo is also gone, though I imagine that is more my brain/ears compensating. :)