What kind did you buy?
@TXNS_fan : I got Bissell Pet Hair Eraser Lift-Off and this thing can suck the hair off of a cat. I just got it delivered today and it has sucked up some stuff that was deep down in my carpet that I had no idea was even there! I have been using an Oreck, which has a lot of cleaning power, but is 20+ years old and the handle was starting to break. So I felt confident that my carpet was clean. But, today I slowly and thoroughly vacuumed the livingroom 3 times with the new vacuum and each time it was still sucking up stuff into the cannister. I highly recommend this vac. It has a rolling brush tool for furniture, along with a lighted crevice tool, it swivels, it has a lift-off cannister so you can take the tools to the stairs or out to your car. It is heavier than I'm used to, but the Oreck I had was really, really light...its big marketing angle...no on-board tools. I wanted tools this time around.