Now I've been called out - I tried to make it sound technical and like I did something awesome whe all I did was buy one of these :( YOU DON'T KNOW ME......... Seriously though - I bought the soda stream when there were a fair few teenagers living in the house. It worked beautifully - when they actually have to work it themselves, clean their own bottles and take ownership I found that "soft drink" consumption dropped by a huge amount. Usually any soft drink I bought was opened, half shared then left in the fridge (or round the house) and a new bottle opened because the last one was flat. Now there's never anything that isn't drunk, rinsed, refilled and put back in the fridge. Personally - I love tonic water, ginger beer, soda water and also lime and creamy soda - but not every day. And not enough to have a bottle of each in the fridge at all times fresh and waiting for me - especially not with kids in the house that are more than likely than not to have poured a glass and left the top off. This way I can drink soda water all day (which I wouldn't do with tap water) and have a glass of whatever other flavour takes my fancy whenever I want. Bingo - the bottles don't have a fuel gauge on them (yeah - they may last 3 weeks or more, but when they run out it's usually inconvenient, plus they start to go "flat" for the last bit) Lets me drink as much soda water as I want, the mixes are a hell of a lot better than coke or any other soft drink and also limits what the kids drink by forcing them to manually participate I went the top of the line Soda Stream (don't have to screw the bottles in each time) and just bought a 6kg CO2 bottle and adapter - honestly, it would have been far cheaper (short term) to have just continued on as we were going. You really, really like trying to stir things up don't you ;P Can't remember what you drive, any advice you've given nor any questions you've asked - all I can recall of your posts are semi argumentative jibes and cheap, provocative jabs - some I like, some I don't and others that just make me wonder what your deal is. Keep it up doge - it's working so far