I wanted to save me the water boxes (or 6 packs) drag that I'm doing now, but one needs to have more carbon dioxide than is indicated in the instructions. As we like to drink strong sparkling water is not enough, with 2-3 short bursts. Rather 5-6 long shocks and thus also the first cartridge was empty soon. The apparatus actually makes a ramschigen impression and is not very stable. The screw in the bottle is very "hakelig" and really fun does not make the use of so. Save money over buying of finished soda does it, with us it's more expensive, but it saves the smuggling, which is particularly interesting when you have a baby at home, and thus the transport capacity is also limited their daily shopping. If this point would not, I'd rather continue bottles bear in the apartment. I find the price for the "cheap" hard plastic construction covered, normally you should get such a device almost free, since you paid for using the cartridges enough.
