Last F18 they built is the B1. Boulogne won the Belgian Nationals with it last weekend.
I live in Belgium and we have some Cirrus at our club.
From what I heard it is quite a difficult boat to sail with, together with it you have less teams to share information with, because there are less boats.
It is like owning a Capricorn in Belgium. I guess if you want to invest time (and have the knowledge) to do the entire trim it's a very good boat.

Gill