In overall, the acquisition meets all of the expectations. Those who are skeptical should know that this does not substitute for a comprehensive cleaning; it merely does the sweeping. In the event that the apartment is exceptionally filthy, we will clean it ourselves. Got pros: I put it through its paces once every several days, and the flat generally has a fresher air quality as a result. The map of the apartment might be broken (it goes from the kitchen through the wall to the room), but since it has a "Experimental" (Unfinished) feature, I don't think there's anything wrong with it. Got cons: The location of the base must be determined with great care because you can't just set it wherever.