My one bad addiction is Diet Coke. Can't seem to kick the habit so I decided at least for the environment I needed to cut down on can and bottle waste I was generating. Recently bought a soda stream so I can make my own and generate less garbage. This is very convenient and I bought a separate dispensing hose which works great. Downside is the relatively short shelf life and I assume this is due to the diet version. Full sugar versions I believe have a much longer shelf life. Once I received it there was only about 6 weeks before the use by date left. So I wouldn't want to order more than one at a time.