Hmm, I have my reservations about the actual stuff (drum brake on the rear, weight of the thing, and most importantly: The longevity of the drive belt!), but I really don't doubt it's much fun and that I want one. I want it for travel, because I figure it's much more fun than standing on pegs six to ten hours at a time.
Does the quaife transfer box work, and work for a long time? Who knows, only time and the concerted testing and efforts of MMC and SSC will tell.