A useful tool to have on hand if you need to get something done fast, like say, sprint a hundred miles in twenty minutes. Docked it one star for taste because there is a chemical note - possibly the caffeine - that is not well masked by the flavoring. One caution: when it hits, your eyelids will snap open with the sound of a rifle shot; could alarm your neighbors.
Love the flavor and the energy.. obviously the free shipping is a total bonus. Now I don't have to waste the extra time or money by stopping on the way to work to get something that I now have in my refigerator.