I brought this to replace another branded one which has stopped working. This Karcher WV2Plus N is much quieter and lighter, though the unified body style is a little harder to manoeuvre over a window sill when vacuuming towards the very bottom of the windows (my last vac had more of a neck but a correspondingly wider base). I also like the choice of two snap on blades (the smaller one is ideal for todays narrow-fashion windows). Using one of these on the colder winter mornings makes the room feel noticeably drier, even without resorting to using a dehumidifier.