Let me say that I love this drink, but I knew what I was getting myself into before tasting it. Many people think its blue pepsi and its NOT. They really should have called it Blue By Pepsi. The drink tastes like a blueberry slurpee from 7 eleven but carbonated. Considering I love blueberry slurpees I love this. The drink has more carbonation then normal pepsi which explains the dull flavor some people described and the difference in fizz. Contrary to popular belief this drink does have pepsi in it athlough its greately overpowered by the blue flavore. Dont ever shake it up you will be sorry. :)
Anyways I really like it, but pepsi calling it pepsi blue would be like pepsi calling orange soda pepsi orange, it just isnt what people expect. NOTE as it says on pepsis website this product is mostly marketed to teenagers and is not availble in diet yet, but maybe soon.
Anyways I really like it, but stay away from it if you think it will take like pepsi or dislike blueberry slurpees.