Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Completely disappointing

I returned this item to the store after one week. The cordless that I really wanted was out of stock so I bought this one. It is the worst I have ever used. Not only did you have to go over and over something before it would pick up, but half the time it would shoot it out the back, particularly if you were vacuuming a tile floor. I would not waste my money on this one.