A few advantages: the Roomba i7 has absolutely no disadvantages. It vacuums well. Everything must be done in accordance with the cleaning plan, and the hour is now officially sweat time. Brushes are the ideal tool for collecting long hair as well as any other type of trash. Some disadvantages: I wouldn't say it's a disadvantage, but the one we have likes to drive around multiple times whenever we go anywhere. Even when it looks that everything has been cleaned, it still goes and checks. This feature is present on each and every model produced by this firm. In most cases, it is not frightening, and on the contrary, cleaning is preferable.