WE have a Dyson Animal machine. We were burning out motors on others because of the Borzoi dogs we had over the years. The fur would wrap around the brush area and overheat the unit.
I will say the Dyson has held up really well but I wish it were lighter but not having a bag to replace is a real plus. Of course now I have to cut all the wrapped up fur on the brushes but at least I don't have to buy another bag.