For me, the purchase is expensive, of course, but I bought the robot for a reason. There is a cat at home, from which wool climbs in tatters. The vacuum cleaner is so powerful that the carpet after it is not only without hair, but as if dry-cleaned! It empties the dust collector itself at the same time, freeing me from this dirty business. She made a cleaning schedule for the week, he starts, ends and returns to the base.