Prior to this vacuum cleaner, I used Clever & Clean vacuum cleaners, as well as Midea of the middle price range. This vacuum cleaner is head and shoulders above them and made me happy from day one. He builds a map of the apartment and accurately determines his base and the place where he is now. He cleans the apartment quickly, because he knows where he has already been, and where he has not. Such a combo with a daily cleaning schedule is very effective. He vacuums every day, and I don't understand where he constantly finds so much dust. I supplement his efforts with a small handheld vacuum cleaner also from Xiaomi. The standard vacuum cleaner has been idle for a long time. I took the Chinese version, there are no problems with setting up, connecting and using it. I recommend to everyone.