I've been in them in the factory. I really love those trailers; the layouts suit me particularly well. Plus, I'm a fan of a lightweight, narrow-bodied trailer. (After all, I just bought an Argosy Minuet.) I also like the European frames with the surge brakes; makes it easier for me to borrow tow vehicles and not hassle with a brake controller.
But. I'm not so sure these would ever be a profitable venture for AS to sell here, unless fuel prices go sky high and tow vehicles shrink. Still, if I was rich and could convince Jackson Center to sell me a 534 or 684 double...