Hmm non spoilery.
Well, I enjoyed it. I never go into this kind of movie with assumptions based on the book. Because doing so is perilous to ones enjoyment of the movie if you expect things to happen.
Remember PJ made this one lighter, funnier and more rollicking than LOTR. The action is often madcap, fast, hilarious. And not all canon. But by golly he has done his source material some justice. He has gone back and re-evaluated material that later tied the Hobbit to the LOTR. Because that is what Tolkien did.
Dwarves - people worried about the dwarves… some bearded, some not so much. They are bloody good looking dwarves. Each has their own personality and style… not everyone of them gets huge amounts of screen time but I relish the fact they are not Gimli clones. Plenty of stereotypical dwarves in the movie so don’t despair.
Gandalf - Ian McKellen loves the role of Gandalf the Grey. And there is much much more to him. Time is spent on the character of Gandalf.
Galadriel - you get to see a bit of her. Which is awesome.
Martin Freeman - is understatedly very good. His Bilbo is patently different from the attitudes of all of the rest of the cast. The character of Bilbo is not Tolkien’s… but that is not a bad thing.
Gollum - Andy Serkis does not fail to please. That is all.
Greeblies and CGI - over all the greeblies are quite cool. There is some talk of the Goblin King on the internets… he is pretty bloody good. Funny. Gross. There is only one greebly I am not entirely sold on but we’ll leave that for you to decide.
High frame rate - I am not sure everyone will like this initially. I did. Crisp, smooth and detailed. Fights scenes barreled along at pace… if you struggle with 3D and fast action this may be an issue for you… just go see it in 2D. The 3D enhances the movie but it will still be cool without it. Luckily I have to go and take my step sons to see it… so I get another chance in the not too distant future.
Over all, rip roaring fantasy fun. PJ loves the source material and it shows. He pays homage to previous attempts and while not how purists might want to see it, it is instead bloody good cinema. And good on him for breaking ground with new technology!
(Also - it was one of the more immersive 3D movies I have ever watched. And it ignites the larping blood too!)