I keep telling myself that I won't take them seriously as long as there's no public demo, but big serious company who have seen behind closed doors demos keep giving huge chunks of money... They've gotten $2B in funding... with so many companies out there trying to do what Magic Leap is doing, I don't see any reason why VCs would give them so much money over the others. The only plausible explanation is that their secret demo must've been really good.
I'll withhold my judgement until they ship it.
Early reports (RoadToVR) say that the FOV is rather bad ("about the size of a VHS tape held at medium distance"). I'll wait.