This drink, Klaus Kinski, as is, I rated as 3.5. The ingredients blend together OK, but the overall taste is somewhat flat and definitely "heavy." It needs a contrasting flavor, so I added two dashes of blood orange bitters, but the other ingredients overwhelmed the flavor of the bitters. I decided, then, that what is needed is a zest from a citrus fruit, I added grapefruit zest, and it was helpful. Next time, I'm going to try orange or lemon (maybe Meyer Lemon zest). If anyone else comes up with a better solution, be sure to write a comment, I'd like to hear from others who have "fiddled" with this cocktail. Thanks.