I didn't see any mention of this so...
While not a game breaker but any means if you don't have a DX 11 video card, but I wanted to give the Dev team Kudos for the new Ambient Occlusion feature! It is subtle, but makes this game look REALLY REALLY good. I didn't think it would make that much of a difference until I turned it back off. The shadows seem to make everything look crisper & more defined.
For those who do not have access to DX 11, like I said, it's not a game breaker, but it really looks good with a negligible performance drop as far as I could tell.
L.