Ive been on that track, but about 2 yrs ago as I missed the track day last year. I'm hoping my instructor clinic will be on it again in 2012.
Anyways - great track alot of fun, 22 turns is a bit much to remember but by the 2nd session out I had it pretty good (watched a lot of youtube vids the night before to help memorize it lol).
I dont like the hair pin, its a stupid friggin turn (as every hairpin is in my opinion) and not a racing turn at all. The esses are cool up hill and the ferrari killer turn test how big your balls are (left hand turn at the crest of a down hill which makes the car light and your well into 4th gear at that point).
If you have the chance to get on it... get on it!