One aspect that I didn't enjoy, even though the overall experience was wonderful, is that I wish there was less CG and more practical effects. I miss the full body creature makeup because it seemed so much more real and tactile. This film is cluttered with CG, and that definitely takes away from the gritty realistic feel of the first trilogy. That, and the perfect hair of the dwarfs bothered me a little. Great character designs, but I don't know where they find the time to tend to their intricate hairstyles while out on adventures.
Another thing I wasn't into was the humor and speech of the goblins, trolls, and orcs. In comparison to the first trilogy, this was poorly done, making them seem more human with comic relief that wasn't necessary or really working. Something more guttural or hissy would have been preferable.
Other than that, I thoroughly enjoyed it, recommend it, and will be there next year when the second one comes out. The art direction, costumes, lighting, and sets were once again a thing to behold and it made me nostalgic for my first time. Espically Rivendell and the elves which will always be my favorite.
Happy movie watching!