About a month ago we purchased a SodaStream, and after using it I wanted to share my review of this product.
While we try to live as naturally as possible, we still enjoy the occasional soda (okay, so the hubby likes one every day with his lunch too). The thing that we don't enjoy is the enormous price tag or the waste leftover. We don't live in a recycling state, so cans and bottles just end up in the trash.
I've had my SodaStream for about a month now, and here's the things I like about it so far:
- The price - Once you get passed the initial investment the maker and bottles, the price per unit works out to be much less than store bought soda.
- REAL SUGAR - in the regular soda versions, the sweetener is honest to goodness sugar.
- NO ASPARTAME - I'm a diet soda drinker, but like most people I'm scared to death of the potential risks of aspartame. SodaStream's diet products are made with Splenda, and while some argue that it too is dangerous, the National Cancer Center has officially said that Splenda causes no health risks (at least at the time of this writing. I'll update if I ever see that has changed).
- The flavor - I was really skeptical when it came to taste, but I've found that they really do taste just like the brand named versions. I also like that you can control the amount of syrup/flavorings you use in your drinks. Also, you can use your own flavorings to make terrific sparkling waters.
- No electricity required - Since we are planning to make the jump to off grid living in the next year this one was a biggie (I already have WAY too many gadgets and am going to have to downsize).
- Much less to store - In the space it would take to store just one 12pk, we have nearly 10 bottles of different flavorings, and each bottle makes approx 12 liters.
- Quick & Easy - With this gadget you can literally make a bottle of soda in under a minute.
- Reusable! - This one is huge for us. Not only are the bottles reusable but the CO2 cartridge can be recycled and refilled. One less thing in the landfills.

So what don't I like about the SodaStream? Well, it's a big investment on the front end (units start around $80 each with the nicer looking units going for about $100). Extra bottles can be a bit pricey, and the bottles of flavoring are roughly $6 each or more.
I am nervous about the unit's construction as well, being that it's mostly plastic. So far it is holding up well and we'll just have to see how it does in the long term.
I do think that this is something that Prepper's should consider owning, not just the suburbanite or homesteader. We read all the time about keeping morale up in a SHTF type scenario and to try to maintain a sense of normalcy while you are attempted to adapt to sudden changes in situation. It seems like a silly thing maybe, but a bottle of your favorite beverage might just make things a little less stressful.
Just my two cents really.
UPDATE 4/20/2012: The SodaStream is still working wonderfully and the plastics seem to be very durable.