The fourth rule of Soda Club is: Two SodaMixes to a bottle. One advantage of making your own soda should be the ability to custoimze it to your liking. Adjusting the amount of carbonation is one way, but experimenting with different flavor combinations is another. Remember that silly product a major cola provider came out with a few years ago that was essentially half-regular cola and half-diet cola? There's no problem creating that with Soda Club. Vanilla colas can be made by mixing cola and cream soda mixes. That said, while you can vary the amount of SodaMix to a bottle, there isn't a lot of leeway. Putting in too much of the syrupy SodaMix resulted in an undrinkable concoction.
Fifth rule: One bottle at a time. One of SodaMix's strongest arguments is that it saves money in the long-run. The company estimates the cost of a liter of soda at 42 cents per liter (and even less for seltzer), but two-liter bottles of premium soda brands are often on sale for 99 cents and you can of course go lower buying lesser-known brands. That said, in most cases Soda Club sodas taste as good as "the real thing." I tried many varietes, including lemon-lime and diet lemon-lime, cream and diet cream, root beer, and of course cola, diet cola and even caffeine-free diet cola. Soda Club also has flavors that taste like Dr. Pepper and Mountain Dew as well as an energy drink, but I was disappointed that the former was unavailable when I tried to order it.
Soda Club also has some flavors you probably won't find in the store, such as orapple-peach and cranberry-raspberry. All but one of Soda Club's regular flavors are sweetened with sucrose insstead of high-fructose corn syrup and its diet flavors are sweetened with Splenda.