I used to drink Diet Coke, but only the version that was sweetened with Splenda. It tasted the best of any of the artificially sweetened soft drinks. Still not as good as Coke with sugar, but passable. I stopped drinking all artificially sweetened soft drinks in 2005, Doctor says they all mess with your stomach bacteria. I wasn't diabetic then, but now I don't drink any soft drinks at all after developing diabetes. Just plain flavored sparkling water, coffee and ice tea.
Growing up in the 1960's, all we bought was diet soft drinks sweetened Cyclamates. THOSE tasted just like sugar sweetened drinks. U.S. felt it was unsafe and banned them in 1969. Today, it is still illegal in the U.S., but legal in 130 other countries show feel the other artificial sweetener are more dangerous. Who knows?