When we moved into our new apartment on the 21st floor, which included enormous windows and a balcony with a view of the city, the question of whether or not to invest in a window cleaning robot became an immediate priority. Those who wanted to wash everything in the family while standing on a stepladder were unable to be located and purchased this fantastic unit instead. Just delighted. Everything is understandable and uncomplicated. It's possible that he doesn't possess super speed, in which case you don't need to stand over him; he turned it on and glued it to the glass, so you're free to attend to other matters. The window will be washed by the robot, which will halt at the bottom when it hears a signal. After then, you switch to an other window. Comfortable. I strongly suggest!