Washes perfectly, sprays the liquid itself, one set of cloths is enough for a complete wash of dirty dirty windows from six wings, two passes. Economical consumption of liquid for washing windows. Much more is spent manually. The windows were very dirty from the outside. Didn't have to rub anything! Everything was done by a robot. On the third pass, I changed clean rags and, in general, beauty has become! The wind was very strong, but the robot managed. At home, the floor is made of glossy porcelain stoneware, glossy porcelain stoneware walls in two bathrooms. All! Now he is for the elder Fatima at home. Now everything is on it)