Instruct: Classify a given review into positive or negative sentiment.
Query: Was able to clean the stairs with it twice before it burned up

This product has a serious design flaw. When we first vacuumed the stairs with it it made it down the first set before it got so warm that I turned it off for a while. After an hour or two I went back and did the last half. About a week later I did it again but this time tried to just straight shoot it. Not my best idea..... After 10 stairs it turned off and became a giant paper weight. This is not a product that I would recommend purchasing unless the place has a very good return policy because you will have to exchange it.Our second one lasted just about as long so we ended up switching brands to something that has a little less suction but has longer then a 10 min life span.