Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I feel obligated to review this vaccum! Beware!

I feel a strong obligation to review this vaccum...I hate it! I gave it a fair shot and told myself I could get past how damn heavy it is and how my back ached when I had to vaccum. Omitting that off the bat...we move onto how annoying it is that it works intermantently. Sometime it works in the suction department but the brush won't work...then I have to run it back and forth a few times and sometimes the brush will finally kick in and by that time my back is breaking from the heaviness of it. Then I get scared to turn it off if I have to move something out of the way to vaccum for fear of having to start the whole process over again. It is a nightmare...the worst vaccum ever. Don't buy it....trust me. I don't know how it got good reviews....seriously.