Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great... When it worked!

My daughter had fun with this when it worked. It would constantly stop playing and it hadn't been touched or anything, just stop. It was a constant frustration. My husband is technical savvy and still couldn't figure out why it would just stop. It was very frustrating and my daughter finally got so that she wouldn't use it anymore. Had it worked, it would have been great. If only...