So, here's what it looked like, when mixed 1 absinthe and 2 water. I can now see why it's often referred to as "the green fairy".
As for taste ? Well, there's the definite anise taste of pernod, Ricard or Pastis, but there's also an underlying bitterness, which, presumably is the wormwood. Despite the 60% ABV, there's no "alcohol hotness" that you often find with other spirits or with high alcohol wines that are still "young".
Overall, as I like the aniseed flavour, it gets 9 out of 10. Not bad at all.