As of this writing, the PF 1901 is the best absinthe I've tasted. To begin, it's a lovely peridot green, very natural and yet a perfect hue and intensity. After water, it becomes a creamy jade green, with hints of amber and blue, and in passing I'll note that the transition is most entertaining to observe. However, it's in the tasting that this absinthe really comes into its own. The aroma is herbal and complex, but also refined and subtle, and the flavor is a perfect balance of spice and the slightest bitterness. The finish is good and slightly numbing. Overall, a delectable spirit -- the best of a very excellent family of absinthes.