I bought this a month ago and put it head-to-head with my older shark and a Deebot T8+. This newer shark hands-down is the loudest of the three sounding like a small jackhammer driving around the house. Well it doesn’t get lost as easy as the old shark it gets lost more often than Deebot. And it’s a little bit too tall to fit under our bed. The base station is nice and quiet though that’s pretty nice.