I just saw it and since nobody else made this yet, go ahead and discuss, speculate, review, criticize, praise etc.
Here's my tl;dr review: good film, doesn't take itself too seriously and remains faithful to the book's lighthearted style, the pacing is kinda inconsistent and a lot of scenes were too drawn out, the whole "old Bilbo telling a story on his birthday" narrative feels hamfisted. Some improvements from LOTR are visible in terms of Jackson's directing, both in terms of framing (some nice panning shots and positioning here and there) and characterization, especially with that of the non-humanoid characters, like the goblin king, the trolls and even the orcs. Characters in general feel like they have a lot more soul than in LOTR. A lot of clichéd and predictable sequences prevent the film from being as engaging as it should be, and it definitely feels like we've passed the midway point of the adventure meaning I still remain very skeptical of the choice to make this a trilogy. 6/10