Finally caught this a few days ago and LOVED it.
A much more grounded, personal, unique superhero film. Up there with Nolans TDKT, Hulk (yes Hulk) and the Iron Man films as the most character driven. I'd say it's more character driven than the Iron Man films as it has more symbolism and meaning underneath the surface. As much as I love superhero movies in general, not all of them feel like film films. The Wolverine joins the very small few that are genuinely good films without the crux of fan service and expectations.
I think it's almost flawless. Some people are hating on Viper. I don't see why. I was expecting some bright, flashy, cheesy, scenery chewing villainess by the way people go on about her. What I saw was a surprisingly icy and reserved vixen. I liked her. Her skin shedding was a cool little highlight.
The third act as well seems to be getting a lot of flack. Again, I don't see it. I was expecting a bombastic explosion of CGI and fireworks but got a pretty straight forward, contained fight scene. The CGI was economical and well done. Don't see the problem people are having with the third act.
Anyway, can't wait for extended cut.
Oh, and Marco Beltrami's score is exceptional. The guy seems to score every other film that comes out these days and a lot of his stuff is forgettable but sometimes he knocks it out of the park (3:10 To Yuma, Hellboy, and World War Z come to mind). He knocked it out of the park with this film. A moody, atmospheric, dark and haunting score.