Supposedly the Absinthe sold in the us has the Thujone filtered out of it, since its banned by the FDA. Years back I was interested in trying some real Absinthe so I just imported a few bottles from the UK. Yes thats illegal also, but I took the chance, seems almost everyone has no problem doing so.
Anyhow the stuff to me anyway is fairly horrible, even drinking it the traditional way with sugar and a slotted spoon. I absolutely hate black liqorice though, and thats its flavor!
I have also read since its got such a high ABV that you will never be able to consume enough wormwood to get any real effect from it. By that point you would either pass out or die from intoxication of alchohal.
I look at it as a novelty, much finer spirits to be had for the price! (that actually taste good)