I was a little skeptical about buying, I read for a long time, looked and chose based on the price / quality ratio. Bought and never regretted. The house has become really cleaner! All the same, three floors, more than 220 square meters and four children who crumble, litter, bring sand from the street, and two huge dogs that sometimes come into the house. Just an indispensable assistant, works day and night. It teaches you to order - before cleaning I clean everything from the floor, it works quite loudly, but with the doors closed at night, for example, on the second floor, you can’t hear how he cleans on the first floor. In general, I am very satisfied. I recommend.