So, I was really skeptical when I discovered the part of Amazon ... long, very long, I had been looking for a good opportunity to brush our skylight, without being or even without even afterwards "bathed" always put the floor of the room in under dirty water. Since the psychological strain but was now quite high with me, I wrestled my way through to a trial with this window sucker. And successful! Works great good! In handling a little getting used to and time do I want a little longer than when I clean windows in the conventional manner. But for the skylight: SUPER! Nothing goes more down or splashing around, super clean business. And by the extra-long extension style (I had additionally ordered) is finally the height of our skylights no longer a problem (so far I could not even come with the use of a stepladder to the very top!). Next, I try the part time in the conservatory ... ;-)