I handled the watch about a year ago. It is pretty nice. The repeater strikes very quickly and sounds just ok. It's small, 36mm I think. At 38mm I may have considered it. The other problem is who services it? Does Piaget have people capable of doing it justice? That was rhetorical, I really don't know the answer.
Anyway, it's certainly a cool piece of horological history given the success that Journe has had.