It's an absolutely fantastic cocktail. It's my favorite tiki drink by far. A lot of people prefer mai tais or pina coladas, but for me it's the zombie. Falernum tastes sort of like a sweet, herbal almond water. Angostura bitters are the original cocktail bitters - almost two centuries old. They add a strong herbal flavor & aroma. Angostura is a staple in tons of classic cocktails like the old-fashioned and the Manhattan.
But, man. The zombie has it all. Very strong rum flavors (oak, dark fruits, brown sugar) at the start, fruit & sweetness in the middle and a strong cinnammon finish followed by the rum burn.
I could go on all day about classic cocktials and mixology. They just don't make drinks like they used to.