The device travels around the expanses of the apartment for half a year. Thanks to him, I now clean my house not once a week, but once a month. The robot cleans every 3 days. I am satisfied with the purchase With its pros: Very persistently cleaned in the most secluded corners. The suction power is sufficient. If you put an unofficial firmware with obscene language - it may well brighten up leisure Cons: Panically afraid of curtains. Ready to fight on every corner, but not on the curtains