This is not just a vacuum cleaner, but a smart machine. On the first day, in 30 minutes of silent work, I collected garbage, crumbs, dust and wool in the living room in the volume of a standard vacuum cleaner, on the second day, according to the program, I clearly repeated the route and returned to the base. He himself finds a way out of complex labyrinths, goes around obstacles quietly and with caution. I am satisfied with the purchase, I recommend.