I have long wondered whether I should buy myself a window sucker. When the offer he was now, I ordered it and am thrilled. I always felt the washing windows as "detention" and have always annoyed me about the then still existing streaks and stripes. That has now changed fundamentally. See the window from top, no more dirty water on the windowsills and the floor and, above all, a significantly reduced time and effort. The battery is fully sufficient to handle any problems. Within 45 minutes 4 large windows, a balcony door and a door were cleaned from both sides. From my side an absolute buy recommendation.