The SodaStream is real hammer. It is so convenient. Never water bottles tow back to the fifth floor! I'm very satisfied, even if the gas cylinders Screw apparently not always as easy (sometimes he sounds weird then / else and button presses or less against the hand) is.
Goofy I find, however, that you can not clean well the bottle !! Washing is still, but the lid, especially the thread and the rubber ring are really fast disgusting.