I took advantage of a special Soda Stream offer in February, and though I would share some information about this product. It's super simple to use. Just fill your container with water, twist it onto the machine and pump in the carbonation.
It's surprising how many days the drink stays fizzy! It is lightweight and you DON'T need a power source. You could easily take it with you in a travel trailer or camper.
You can add whatever flavors you like. This machine is fun and economical. The carbonation tank last a LONG time. We still have not had to replace ours. This machine will also save you a substantial amount of money on soda. They have every flavor of syrup from Dr. Pepper to Diet Pepsi and they taste great.