Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fabulous - when they work

This is an excellent concept and when they work they are easy to use and have a very flexible spray pattern and easy sweep adjustment. BUT, I have bought five over the last two years or so, and only 2 are still oscillating. The others just sit there and spray the same spot. No movement. Judging from the other reviewers who state the same problem, there is a manufacturing problem with these things. You can occasionally get them for under $10 with a coupon at ACE or Sears - if you can get that kind of price they are worth taking a chance. Otherwise, don't bother. It is a real shame because they seem well designed - apart from a bad motor mechanism apparently !