For next gen, I expected something earth shattering, but this is far from it. It's a very small leap from AC3.
Gameplay wise, once you get your own ship, things become a lot more fun. You become obsessed on building something to rival the QE2 and you forget about the fact underneath it all you are supposed to be an assassin.
I've seen a lot of lads say it's impossible to max out fully 60fps on anything less than a 780 Ti / 690, which considering how it looks, suggests the game is very poorly optimised.
You don't need huge amounts of VRAM at 1080p, I can get away with 1.5GB.
Not bad, but if we were all expecting next gen to be a huge leap, it's not.