Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The most effective household item i've bought....

I don't normally take the time to wright reviews, but this vacuum is priceless. I have a cat and dog that both shed. This vacuum has not only pulled up every last hair, but works great on stairs, bare floors, and baseboards. I have used the attachments to clean and dust everything in my house. The dyson also prevents animal smells from circulating in the air unlike my old vacuum. Knowing what I know now about the quality of dyson vacuums, I would happily pay full price. It is wonderful that I got this reconditioned model for half price and you can't even tell the difference. By the way....if I totaled the price of filters plus my old vacuum's cost over three years.....it would surpass the price I paid for the dyson. It is well worth the initial investment.