I used to have at least a couple cans of regular Coke each day. Did the calorie math and figured the easiest way to shave off some calories was to switch to Coke Zero. To me, Diet Coke tastes horrible and nothing like regular but Coke Zero tastes very similar to regular. It even works well with Jack which is my go-to cocktail.
Now 20 years from now when they link Alzheimers to some chemical in Coke Zero, I'll be screwed.