It picks up gradually, at first looks like just a good game, after a few hours you're blown away by it. Great story with tons of action and complex characters so there's also a psychological twist to it. While not an open world game, it often feels like one when you run or drive through miles of stunning landscapes, often having to stop for a moment to take a screenshot for friends(just like you're on holiday). Looks like they pushed PS4 capability to the limits. It's hard to believe how much terrain is there, I heard that Naughty Dog people were pulling off 12hrs shifts to do it and I shall believe. One thing I did not like is that you occasionally get to solve classic adventure game puzzles in peoples' tombs. These seemed a bit underwhelming to me although certainly do pay a tribute to the tradition of 90s. All in all it's still one of the most immersive games I came across so far.