Previously we used a vacuum robot and a mopping robot, but with this unit, we can use only one device. We oned multiple irobot devices, and this is definitely our favorite. The only disadvantage is that it is loud when it starts emptying itself. Is it noisy when You start vacuuming? No, not really. Dyson sounds the same. Perfect scheduling and ability to use GPS fence. So it will start working only if you leave your house.