Use the cleaning helper for some weeks now and love since then washing windows. The device sucks the water from well, and the windows are stiff-clean. Even better, it now clean and very happy times other family members the windows and mirrors, because the device always at hand, and charged in the cupboard stands. To me it is also a great help to quickly clean our Hau all our cabinets with lacquered fronts and in the bathroom tiles walls. A strong buy recommendation. By the way compared to other models, was the best for me cut off this device. At least for domestic use.