Thank goodness I have no problem purchasing the caffeine-free Coke here in Panama.
There is no difference in taste with the original.
On the other hand, I find diet cokes to be foul tasting to include the coke with no caffeine and no sugar.
When I discovered Panama sells the above, I purchased a case. It was all I could do from pouring it down the sink.
Remember Tab? Now that was some 'foul-tasting' brew...