This is not just a vacuum cleaner robot, but a smart technique that can itself draw up a route and scan the entire space. The battery charge is enough for the whole apartment. Of course, he does not cancel regular cleaning, but it has become much less frequent (about once every two weeks). I noticed that there is no chaotic movement. It travels only along a pre-planned path and in straight lines, there are no zigzags and similar unnecessary movements and unnecessary waste of the battery.