When I first switched, it was because I had been diagnosed with diabetes. I thought it tasted very terrible. Like learning to smoke cigarettes, it took about two weeks to start liking it. If you stick with it, it becomes sweet where it wasn't before, trust me. Then you'll like it and think it tastes just like regular Dew, and regular Dew will taste WAY too sweet. But the first time? Yuck.What's the diet mountain dew taste like compared to regular? I'm a big fan of the regular but need to cut down on sugar, if it taste as good or almost I think I could switch.