Yeah... I can't help with that one, lol.
Cough syrup mixed with soda sounds disgusting, bro, I agree. Promethazine with codeine is not your average syrup, though. Straight up it tastes like pure grape, man, and there's also strawberry, orange (which fucking sucks, dude, it's got something extra on top of the usual ingredients... something that fucks with your chest, for real, it was included to try and curb abuse but... you know.... we still pour up), and I could swear there was a cherry one, but I might be confusing strawberry with cherry.
Mixed with some Sprite it's basically fruit-flavored Sprite with a healthy dose of codeine (60mg to an ounce, some people pour up 2-4 at a time). You don't even have to, but some people put a jolly rancher in the soda and let it dissolve a little bit for a little extra fruitiness. I don't even bother, though, shit's delicious without adding candy, in my opinion.
I'd love to try some Actabliss, man, I just don't think it'll be an easy thing for me to do any time soon.