Kürz and Knapp:
It works great, kitchen window inside and outside a total of 4 square meters 10 minutes Streifenfrei.
Bathroom I suck sometimes just the condensation on the windscreen goes.
Kitchen cabinets or rooms inside doors sprayed, wiping, vacuuming and finished.
It folds easily, so you does not make any mistakes when buying. Finally makes window cleaning fun.
Cleaner Kontzentrat there are also low in DM.