Bought this on release day and finally got around to playing it for an hour or so last night. Just goofed around trying to get a feel for the controls for the most part. I quite like how it plays. The game looks fantastic on the PS4, especially considering it's a cross-gen title. I wonder if they'll be able to keep the 60fps for the Phantom Pain.
One thing that really bothered me is the localization. It's not like the English is grammatically incorrect or anything, but what I've heard so far all comes off sounding very unnatural--like it's quite obvious that it's been translated from Japanese. Makes it even more weirder when you have people like Kiefer Sutherland doing the voice of Snake.
Maybe it's just because I haven't played the games in English since the first Metal Gear Solid, but I don't remember the previous games sounding this cheesy in Japanese, despite the ridiculous settings.