I saw Part 3 last night. It was pretty good, and while nowhere near as good as LOTR it was easily the best of the Hobbit films. Lots of action and a good bit of emotion as expected.
The only thing that bothered me was maybe half of the CGI. Some stuff, like Smaug and Azog, were amazing. Other stuff, like Dain and the Elf army, looked poorly done and stood out like a sore thumb. At some points during the battle sequence I couldn't help but think of the animated Beowulf movie from 2007 as there was so much obvious CGI crowding the frame.
Overall it was a good movie to close out the saga. I still think everything could have been condensed into two films, but it was nice to spend a few extra hours in
New Zealand Middle-Earth.