Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great upright door stop

I purchased the Proheat X2 3 years ago, and have only used it 2 times. The cleaner worked pretty good those two times. This year, I pull it out of our closet to perform my annual cleaning, and the brush motor is no longer working. The vacuum works, but that's it! I took the entire appliance apart and it is fairly simple in design. The fault clearly lies with the electric motor that turns the brushes. It is completely dead.