Sometimes it gets dull when it goes to charge from another room. It can go back and forth for 20 seconds, and then it goes along the wall and finds the base, while continuing to clean. Has pros: I chose between Xiaomi, Polaris and 360. I am very pleased that I bought this particular vacuum cleaner. Through the application it is very convenient to regulate its operation and see the battery charge. It has 3 most necessary modes: general cleaning, cleaning along the walls and spot cleaning (in a spiral or zigzag). I was pleased with 4 suction powers, at the minimum it copes quite well, it is quite quiet and the charge consumption is small. It does wet cleaning well, if it crashes into walls / furniture, it is very gentle. Got cons: You can not increase the cleaning time, just start a new one again.