Bought a Shark Duo vacuum cleaner.
For picking up dust and dirt, it's great.
For hair, it sucks big time.
We have 3 generations of women in this household, all with long hair.
The least little amount of hair would stop the brush roller from turning and cause the rubber belt to melt with a burning odor.
Couldn't vacuum for two minutes before having to stop and pull hair off of the roller.
I've never had any vacuum cleaner be this ineffective with hair pickup.

What is really frustrating is that there is no way to detach the roller for a thorough clean.
So you have to stick your fingers in the best you can to grab the hair and pull it from the roller brush.