Indeed, it produces very nice sparkling water; you can make it with as much carbonation as you want in your water. Personally, 3 presses is OK for me. (Towards the end of the bottle, the strength decreases, and it doesn't incorporate the carbonation satisfactorily, which is reasonable. The service for refilling the bottle is excellent (they bring you the new ones, and you return the empty ones without delivery cost). The downside is that the price for refilling is very high, almost €25; it could be at the level of the blue one, as they get the same amount of gas. That's why it gets one star less, which is for the price.