Taste-Just tastes like coffee flavored water. I'm sorry but it seems like Starbucks is the worst at their own game. Non of their drinks are up to par with other brands. You can sense the aspartame but not really the vanilla.
Buzz-2000 mgs maltodextrin (nice!) 1,800 mgs taurine. 325 mgs ginseng. 180 mgs inositol and 90 mgs guarana. 200% RDA riboflavin, niacin and vitB6. And that's all per can. Also you got a double shot espresso in this, so add about 300 mgs caffeine.
Over all rating-6.5/10