It is strange to be indignant at such a price, but he does not remember the card - there is no way to send it to a certain room. This is a feature of more expensive models. Sometimes after a pause it starts cleaning again. But here, rather, we are giving the wrong command, since everything works as it should from the application. (Both from branded and from ) Therefore, they are used to letting it in and until everything is done, do not touch it unnecessarily. It removes an area of 40 squares from us. The battery is more than enough. Sometimes even twice the apartment passes completely and the charge remains more than 30%. After one cleaning 65-72%. The height is optimal for our furniture - it passes under the bed. We have to remove the wires from the floor, the curtains lying on the floor - it can be wound on a brush. Very satisfied with the purchase. For the first robot vacuum cleaner, it is the most. With it, it will become clear to you whether a more expensive model is needed.