After me, the product has been touted as "Scottish national drink," I wanted to try it once. I have now done, and come to the conclusion: - The taste is very reminiscent Huba Buba-gum - it is me personally too sweet. Nevertheless, the taste of a drink is quite unique. For a Sugar-Free Drink the flavor is fine. - The caffeine content has no relevant effect except perhaps a nuance in the taste. The amount is not specified, but certainly very low. As energy drink the drink so they ought not. - The price seems too high in view of taste, but certainly should be due to transportation costs also to a certain extent.