If I were buying a robot vacuum cleaner now, I would either buy an i3 + or consider products from another manufacturer. The dust collector is clogged with dust without removing even half of the room (an area of approximately 75 square meters). At the same time, the room is visually quite clean. That is, it will not be possible to program cleaning and go about your business, because every time the cleaning program is interrupted. But the funny thing is that the base for automatic garbage unloading is not for sale separately! Brilliant!