Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cute but doesn't last very long.......

My wife and I had seen this advertised on tv and thought it would be a big help getting our son to sleep in his crib. He loved it but there were a few problems. It only lasts about 2 minutes which is not nearly long enough for him to fall asleep. There should be settings on it for different lengths of time. Also, the fish started to get stuck after a week or two. Something with the motor. My son still loves to watch the fish but it isn't quite worth what we paid. Needs improvements.