A HUGE Lord of The Rings fan here! and I have mixed feelings about this movie just like the previous The Hobbit movie.
Let's start with the positive points:
The Acting, it's fantastic and Martin Freeman once again kills it as Bilbo and he is just so fun to watch on the screen and everyone else is great. Gandalf is a huge badass (no surprise there,, this is the same old guy that stood up to the Balrog and said You Shall Not Pass).
The Dragon is awesome and Benedict Cumberpatch is awesome, his voice is amazing and Benedict and Martin together in any scene will make me happy ! The dragon looks majestic and everything worked with that dragon.. honestly it made the movie 10x times better.
The music is great (it's Howard Shore). Some of the action sequences are amazing (the mirkwood spiders, the Barrel scene)
Also the subplot with Gandalf and the Necromancer is actually interesting.
(Lee Pace as Elvenking just decapitating that Orc was so beautiful I can't describe it!)
Then for the negatives:
it's too LONG! and this is not just me saying, anyone who saw this movie says this, it is very long and thus so many and I mean SO MANY useless fillers are thrown in there that just decreases the quality of the movie, they do so much harm!
That Romance is stupid and should NOT have been there, I would have liked it a bit if it was with Legolas and added a bit to his character but nope that Elf is just in love with that dwarf..
The Lake Town people and that useless hate for Bard is incredibely useless.
The dwarves trying to kill a FIRE BREATHING dragon by molten gold is stupid.
Too much CGI and Green screen, as I rewatched this movie I realized that the CGI in the Lord of The Rings was better than this and that was 13 years before this movie, I don't like CGI Azog or Bolg or just CGI orc in general.
Azog is still a subplot that I didn't like.
So these are just the Important stuff that I had to say!
(and Legolas seems to defy Physics.. doesn't matter he's cool LOL)