Being from the US I've only had the stuff I've made myself. It seemed to work really well although it seems that my method is really out of favor nowadays. We'd use Absolut and buy the herbs at a health foods store then steep for a week.

A good batch would produce something that with a good drink would leave your mouth numb, follwed quickly by your head. The alcohol buzz was muted and changed into more of an all body tingling feeling. Continued drinking would create more of a clearheaded buzz with surprisingly not nearly as much drunkedness as would be expected. I've had some friends get a bit wild, but I haven't seen too much craziness resulting from it.

http://www.feeverte.net/

This seems to be a good Absinthe site and is where I first saw the recipe, but it's not there anymore :(