I should have known better than to buy a product from Shark. The rooms and zones disappear from the app on a regular basis. Called support the first time it happened and they told me it's a known issue and assured me it doesn't happen often. Well it's happening once a month on average. Shark sold me a product that offered convenience. It's not convenient to need to re-add rooms and zones sporadically after Shark decides to delete them. Never buy Shark!