Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good power, but breaks down!

I was amazed at the amount of hair and dirt this vacuum picks up! However, I've had to take it in for service twice now and it's cost me $75 each time! I've had the vacuum for about three years. The first breakdown was the result of a clog, which ended up burning out the motor. Now, the brush bar was bent and needs to be replaced! I wish I could upgrade or get money back from Bissel.P.S. I don't have a problem with the weight. The problem I have is when it falls over when I use the hose - annoying. Also, it's very difficult to clean.