There was a dyson v10 before him, which broke down and the repair cost the same as this unit. After a month of use, there are no complaints. In terms of capacity, the battery at level 2 vacuums the entire apartment of 70 sq. In the house, a cat and a dog cope with daily cleaning with a bang (the main thing is not to forget to put it on charge) The weight is very comfortable, lighter than dyson. By the way, I chose the suction power, as the previous one. For me there are no differences. I also plan to buy a robot vacuum cleaner for it, in this tandem it is an ideal option, it remains to do wet cleaning once a week and you will forget about the routine. Reviewed a bunch of reviews and was satisfied with the purchase.