Diet vanilla coke was surprisingly tasty when I tried it. expecting a watered down, over fizzy taste, I was pleasantly surprised to find out that it tasted good! no calories, no carbs, no sugar...nothing bad, but still a good taste! i’m not a die-hard coke or pepsi fan, and i’ve had both vanilla coke and pepsi vanilla... I must say, though, that I preferred diet pepsi vanilla. anywho, diet vanilla coke is very good, although coke products seem to be a bit more fizzy and make you burp a bit more...so it’s a drink that you should probably drink while by yourself and not on a hot date :-D anyway, if you are die hard coke fan, or you don’t care either coke or pepsi, both vanilla drinks are delicious. if you are in the mood for a nice change of pace from either coke, diet coke, or the one with a bit of lemon in it, this is a good thirst quencher. do try it!