Our house is a little obnoxious for them. When you come in the front door, you’re on a tile floor. To the left there’s a step down to a dining room that connects at the far end to the kitchen. At the end of the tile on the right is a step down to the living room, hall, and a bedroom we use as an office. Then there are stairs to the upper level with three bedrooms. So to cover the place with robot vacuums, we’d need four of them. I was tempted to get one for upstairs, but we have one for the dining room and kitchen and it’s gotten so noisy. I don’t want the noise upstairs. I’m sure a newer one would be quieter.