It's not the first time I've had a robot vacuum cleaner. In overall, the acquisition meets all of the expectations. There is only one drawback, and that is the inability to construct a map of the premises that can be used to designate limited regions. But, at such a low cost, it is difficult to anticipate such performance from a vacuum cleaner. Nevertheless, there is a restriction on how far you can go in the form of a box containing batteries. There are two different modes: one involves a line that cannot be crossed, and the other has a circular area that cannot be entered. In every other regard, it's an excellent device. Thank you for providing the block of rollers. While using them, cleaning actually does become lot more effective, and there is less hassle involved compared to when using fluffy brushes. The amount that you are charging is sufficient; there are no issues with this. Deals effectively with all types of pollution, including dirt, dust, hair, and wool. The management is kept as straightforward as is humanly practicable. The mobile application is fairly sufficient; nevertheless, there are some hiccups here and there, but in overall, 4+ stars