I was fortunate to be selected to test the SodaStream and this is what I can say for now. This machine was initially a very modern design and very classy and fulfills quite his share of contrat.En fact, soft drinks are good and with this model, we can choose the intensity of gasification: a little gas, or natural gas in many bouteille.Il also there many perfumes available for creating drinks, I tested some but I have not tested cola which apparently can be a problem ... Concerning the gas bottle, I read that you could just get to the complete and pay the gas but I have not needed to do so I did not ... more info Always it is that I'm satisfied with this machine and I recommend it for people who like sparkling water or sodas.