Great gadget. Worth the investment. The drawbacks are not substantial. Got advantages: a third one was purchased as a present. Everything looks fantastic. Quiet and simple to keep up. On a 260 square meter space, it looks fantastic. much less time is spent cleaning. There is substantially less dust in the unit. Cons of it: When anything has changed in the area and the card cannot be reset, it can grow boring for a while. He dislikes floor-to-ceiling mirrors and does not properly plan the room using them as a basis. might more easily recognize carpets that he cannot drive over.