Spark is one of my very favorite ways to get an energy boost. I have chronic heart burn and can't always drink my favorite (coffee), so when it is particularly bad I turn to Spark. I love the added vitamins and the reasonable caffeine content. My favorite way to blend it is with La Croix, for the fizziness and extra flavor. It is definitely on the pricey side, I feel it is actually a bit too costly for what it is. Nevertheless, I keep Spark around and I do recommend it if you can handle the price.