Finished it earlier, apart from taking a while to get properly going and from my experience having a really rough first impression with the very first boat scene, then it's absolutely phenomenal once it does going.
I'd almost dare to say that this outdoes Uncharted 2, a game I hold in probably too high regard anyway, and feels like a much more considered and impactful experience than Uncharted 2, even if you do end up having slaughtered some 500 guys by the end of the game. Also cannot be understated just how fucking gorgeous this game is, especially the latter half of the game just looks unbelievably good, I bet most folks here end up taking way longer to play through this game than regular peoples since we end up standing around and just marveling at how good this shit looks.
Combined with cutscenes that almost feels like a middle finger to other game dev when they seamlessly blend from gameplay to cutscenes and keep the same weapons in the cutscenes, crazy pants. Absolutely wonderful small scale sandbox encounters as well, really dug the level design in the later locations.
Anyway, best game in a long while, you're officially a crazy person if you don't play this (or buy a PS4 to play this). The End.