Just saw the movie yesterday. All in all, I give it an 8/10.
Unfortunately, it's not quite as good as the LOTR fims were. First of all, I found the addition of Azog completely unnecessary, obviously shoehorned in to drag a 250 page book out into another 9 to 12 hour trilogy. If that wasn't bad enough, he was obviously done 100% in CG, while the orcs and Uruk-Hai in LOTR were actors/stuntmen in costume/make up (which always looks so much better than CG). Had he been done with practical FX rather than CG, it would've been a 9/10.
The addition of Radagast The Brown also felt forced. Like Peter Jackson felt like his first trilogy was somehow missing something by omitting him, so he gets shoehorned into the prequel. What's next? Tom Bombadil in Part 2? Again, for me it cost the film marks. Not only was he unnecessarily forced into the story, but the CG of the sled chase with the warg riders looked fake.
However, despite its flaws, I still found The Hobbit: An Unexpected Journey to be a fairly enjoyable film overall. Hense the 8/10.