Fantastic. Just a great throwback crime flick with an excellent cast. It pretty much simultaneously works as a crime thriller, a dark comedy, and a social commentary. Of the cast I'd say Scoot McNairy and Pitt were the standouts. Gandolfini and Richard Jenkins are also pretty good despite not really having much to do.
It's a nice change of pace for Andrew Dominik after the sprawling epic that was The Assassination of Jesse James. This is a lean, mean movie that tells an engaging story and takes care of its business all in about 95 minutes.
I don't think this is the kind of a movie that will be an Oscar contender. Anyone who is a fan of the cast and/or the genre should be able to find a lot to like though. Very highly recommended!