Some pros: * works quietly, the charge lasts for a long time. * builds a map of the room, divides into rooms, you can edit and specify virtual walls. *no need to shake out the small inner dust box. for 2 months of daily cleaning, the bag in the docking station is still far from full. Some cons: *the application is slow, sometimes it takes a minute to ate the status and map. *switching between different maps (2 floors of the house) occurs from 5-10 times, it's buggy, it's easier to run on the second floor "like for the first time" without hopes for the previous map.