Solid 4-kA, due to the lack of building a map of the room, although it was in the description. π Got pros: Large container. It collects wool well (from where there is so much of it). Easy to clean. A good application, good cross-country ability - the sills are low, he almost always chooses himself. Some cons: Noisy. Doesn't build a map. Sometimes looking for a station for 20 minutes. The virtual wall does not always work - I drove into a cat's bowl, almost got drunk on water. Although there was a limitation. We have to take it to the room and close the doors if we want to clean in one room.