Finished the campaign yesterday. Pretty good stuff, there was definitely some of the last levels that rubbed me in the wrong way, but overall it had some really good stuff, definitely going to replay it in co-op.
Its kinda funny with the graphics, the outdoor areas generally look absolutely gorgeous (<3 their HDR) but the indoors are for the most part dreadfully fugly, especially the indoor lighting.
Oh and I really REALLY tried my best to follow the story closely this time around, but halfway through I reached a point where I had no idea why I was going to press some button at some place or do something and then I lost it. Good thing that the actual gameplay is good enough to not bog down the fact that they're horrible at telling stories (or maybe it just isn't that interesting a story to begin with
)