Saw this over the weekend with Stimpee. I loved it! They really nailed Kong and made him a living thing even surpassing their work on Gollum.
It didn't feel like such a long movie, but some scenes could definitely have been cut a bit shorter, and yeah some things are a bit too over the top even for a movie about a giant gorilla (how many slow-shutterspeed shots of fire, skulls and shaking native people in trance with their eyes turned to white do we have to see really? I get the picture already!!

)
oh, and you gotta love the gruesome death of Andy Serkis

(as the cook, not the gorilla)