Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Loses power gradually and becomes ineffective
Review: I bought this item about a year ago from amazon. We have a two bedroom-two bathroom carpeted apartment for which we wanted a relatively light but effective vacuum with no hassles. It worked well initially picking up fine particulate dust, small bits of paper, dry food matter and hair. It gradually lost its suction power over a year that we continued to use it. Although its motor still hums and the bagless container still accumulates dust it fails to pick up hair, visible fine particulate matter like food, cereal, paper etc. I cannot say that it does not work because technically it's still 'alive'. I had initially given it more stars but after using it for a year I beg to differ.
