I would probably complain about the performance, but considering the tech at use here, and how the game itself is gorgeous even at the lowest settings, all I can say is: Damn good job Massive, look forward to eventually getting the game with the sole purpose of sightseeing and marveling at their fantastic work. Also makes the game a very good benchmark for a typical RT implementation, specially one that is well implemented.
Would've been nice to see maybe a mention of the unobtainium settings, but that's an extra most people probably won't even find out exists.