Ok so I got a soda stream and figured I would post a review, I hate pop I never drink it but I do drink energy drinks redbull and green monster and I figured if I could lower my cost for I must say for 7 bucks I got a energy drink mix that makes up to 60 liters, you fill the hardened 1l bottle with water put it in the soda stream machine and then hit the button a few times discharging the co2 into the water, you then remove the bottle add a capful of the mixture and gently tilt the bottle from side to side to mix it and when I tasted it.....it was pretty damn good its not exactly like redbull but its pretty damn close. you can use any thing like cocoa or kool aid or tea whatever hell I considered filling the hardened 1 liter bottle with bourbon and making a bourbon soda lol. basically id recommend this product to everyone here. you can have co2 filled at paintball supply real cheap. http://www.walmart.com/ip/SodaStream...ingMethod=p13n![]()