I was very skeptical about the claim that this vacuum wouldn't roll the hair around the roller brush. Since there are two long-haired people living in our home, I am used to having to cut off a huge softball-sized wad of hair from the vacuum roller brush every week. Needless to say, this is not my favorite chore and I am thrilled to not have to do it anymore. Even after two weeks of vacuuming, there's no hair around the brush!
Other things I like about this vacuum: it's not too heavy, easy to empty, picks up dog hair well, turns into a canister for things like stairs and using the wand/hose, good suction with suction control, roller brush still spins slightly when using the hard floor setting, the wand separates from the handle and accessories attach to handle as well, the brush tool is soft and picked up ceiling fan dust well, and it's easy to control the movement with the swivel head.
Things I think could be improved: the electrical cord is of average length but a few extra feet would be nice, the rear wheels on the brush part are quite close together making it tip easily, and the brush tool slides on the crevice tool and wouldn't stay at the end when pressure was applied.