I've yet to see the third movie as well, but I love what I've seen so far. There are small details I don't like (one being the romance between Kili and that elf), but overall, I was quite happy with the way the films were done. I'm rather pleased about the length, unlike many, for the reason that just about everything from the book ends up on film. Too often, moments in the books that I really like don't make it into the movies, since the movie would otherwise be too long. If they'd adapted The Hobbit into a single film, I'm sure they would have had to cut a large number of things that I was glad to see, like Beorn, for instance.