Just finished it this morning -- I enjoyed it, but I was expecting like, a Best Picture candidate and instead got a movie that wasn't at all what was advertised. Spoilers in white:
From the previews, this looked like it was going to be a cops-and-robbers, hero in pursuit of the villain type of drama. Instead, there were two action sequences, the lead actors only shared one two-minute scene together, and the second half of the movie was about two largely unlikable kids that weren't at all advertised as being part of the movie. I liked the parallels drawn between the two generations of the families. Overall I'd give it like a B or a B- just because I felt like it was sort of billed as a showdown between the two main guys and it never materialized. It actually reminds me a little bit of the bait-and-switch from Iron Man 3.