Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pfft... Not the quality you'd expect for the price

Bought two. One broke inside a week. The other lasted 6 months - about average for our operation. Neither picked up particularly well when they were working. They certainly didn't pick-up better than any of the $40 vacs that we'd used before. The Shark Sweepers look like they are made of a higher grade material because they're silver in color; don't be fooled, it's plastic and light-weight plastic at that. I won't buy another.