Before buying a robot vacuum cleaner, I had no idea that so much dust could accumulate in a day. The house has become much cleaner. Pros below: Thanks to the presence of lidar, it can build a map, so when cleaning it goes in zigzags, along the optimal trajectory, and not randomly. Pretty good absorption. Its cons: This model only works in the China region, hence the speed problems when opening a map in the application and processing any commands, everything goes through Chinese servers.