"If you haven't tasted Caffeine-Free Diet Pepsi, but would like an idea of what it tastes like, do this - keep a straw in your pocket and wander around outside until you find a pigeon or squirrel that's been dead for, oh, say three months. Stick the straw into the dead animal and suck. Caffeine-Free Diet Pepsi tastes like that, except worse. Plus, the taste lingers in your mouth for months. And gradually gets worse until it's like your mouth was invaded by the notoriously rare and deadly Asian Shit Ant," - William K. Wolfrum.
Couldn't put it better myself. But have you tried Coke Zero?