I woudl go MENTAL. I hate artificial sweeteners but do quite like the occasional coke, especially at the cinema.
What on earth made them think this ad was a good idea?
Basically, it's in a cinema, the bloke from the sweet kiosk appears on the cinema screen and tells the audience that they woudl love Coke Zero, in fact they wouldn't tell the difference from Coke. And then reveals that he gave them all Coke Zero secretly.
I mean WHAT? That's not how you build trust in a brand.
I don't think most people's problem with sweeteners is that they are damaging, though. Most people who prefer sugary drinks just prefer the taste. And this is trying to show you there is a drink which tastes as good but without the "evil" sugar.
Looks like it's real ([http://www.coca-cola.co.uk/press-centre/2013/april/coke-zero-taste-experiment.html here)]
I'd be a tad peeved if I paid for one drink and was given another version of it..
There's a definite taste difference between fat coke and diet coke, and even worse difference between diet and zero. The zero coke reminds me of the 3 quarters fizzy water/1 quarter syrup stuff that you get at Maccy D's etc, it's nasty!