For a long time I wanted a robot window, but it always seemed that it was just a toy. The moment has come and washing the windows has become unbearable for me. Due to the fact that my shoulder hurts, this device has become a necessity for me. I strongly advise all lazy, elderly and people with medical indications (diseases of the hands, feet, dizziness). Of course, you will have to wash the frames and corners yourself, but with glass and a mirror, he will try instead of you. I think that overpaying for more expensive models does not make any sense. Firms with loud names too. This model has everything you need.