Finally got around to watching this (sister this afternoon, with no warning whatsoever: Do you want to watch Battle of the Five Armies?) and so we sat down and we did.
I don't actually remember reading the Hobbit. I know I did, but all that stuff about the dwarves and the kingdom of Erebor? I don't recall any of that. It's a big empty blank in my mind, completely out of memory. I think I remember the bit where Bilbo meets Gollum, but apart from that and the first dinner in Hobbiton? Nope.
Overall, it was...good. Very CGI armies, although perhaps not as egregiously CGI as the LotR trilogy. Smaug could have been dealt with at the end of II, and I didn't buy into the characters all that much, although I see why the various dynamics have fans.
Incidentally, is there any record of what happened to the Arkenstone? Bowman tucks it back into his jerkin and it's ignored/forgotten thereafter so far as I recall.
Do I want fix-it fic? Yes? No? IDK. I feel like I don't have the energy to be fannish the way I used to be fannish. I'd almost like to be, but I'm just not sure I can.