Experience from the past few days: - "Error 6. Move Roomba to a new location". The Roomba 805 doesn't work on the black-and-white woven carpet that takes up most of the house. Break sensors do not work. Roomba 805 has moved to the floor of an adjacent room that is approximately 2 inches below the level of the current room. - Pretty loud. Not as noisy as regular vacuums, but it's not something you'll want to use early in the morning or late at night.