First of all let me tell you frankly that my opinion can be little biased as I am eating these biscuits since a long time.I am just addicted to its taste.Its flavor is just unique and provides a perfect blend of sweet and sour.The other biscuits like Monacco etc are only salty whereas marie and others have a little sweetness. New variants like maska-chaska, mast methi and others have tried to introduce some new tastes.
There is something unique in the formulation of Krack-jack which compels you to eat more and more.It really gels well with evening tea & snacks.
So, go ahead and grab a pack of Krack-jack biscuits and enjoy your munch.