It is successful in cleaning 5 out of 5 times. Although it responds speedily to directions sent through a smartphone, the robot is otherwise entirely self-sufficient in its task. Some pros: A complete charge of the battery is all that is required to clean my kopeck piece. It also recalls the layout of the flat and can be controlled by a voice assistant such as Alexa. Below are some downsides: If the apartment is huge, the robot won't be able to clean it on a single battery because it would take too long.