Having drank somewhere between 6 to 8 million One Barrels and Coke light while in Belize I think I can testify with some authority that they taste good. Also I would say they taste pretty close to the Diet Coke and One Barrels I have when I get home. Unlike regular Coke, Coke Light comes in the plastic bottle.
I really hate this thread all I can think about now is One Barrel and Coke Light. December can't come fast enough!