Instruct: Classify Amazon reviews into positive or negative sentiment
Query: High failure rate

This is the 3rd one of these we have had. My wife likes them because she can shower without getting her hair wet. The first two failed when water would come out the sides of the head and not through it.The third one (just a month old) suddenly would not flow any water through it and the flex tube would not stay in the desired position.these two problems may be related.We had to throw it away.