The old Coke Zero was amazing! It tasted closer to regular Coke without the extra sweetness that sugared colas have (regular colas taste like pancake syrup to me.) I was disappointed a few years ago when they tweaked the flavor. I think they sweetened it a little more to bring it closer to Pepsi’s level of sweetness, which I don’t particularly care for. After a year of not tasting the old formula of Coke Zero, the new one is ok. So really it’s probably for the best since I drink less of it now lol (good goin Coke lol.)