I have been competitively lifting for nearly a decade. In that time I have always trained with some form of caffeinated beverage.
My experimentation has taken me from coffee, 110, Elemental Formulations, PeScience and many other brands. However, Kathartik seems to strike the right balance with its formula for my training.
Focussed without jitters, long-lasting for those grueling 3 hour sessions, and it taste great. I think I may have found my new favorite, and will know for sure when I load up for my next competition. Looking forward to when new flavors drop!