Saw it tonight and loved it, a surprisingly quick 2 hours and forty minutes. There were some pretty major divergences from the book, not suprisingly, but nothing that really bothered me too much except for the weird Tauriel/Kili thing. I found it kind of distracting and extraneous to the larger story.
Thought they did a great job with Beorn and the Bard, and of course the spiders and Smaug himself.
Interesting that Cumberbatch did the voice of the Necromancer as well.
Why does my Bolg action figure look nothing like the guy in the movie?