Sam jackson looks cool. Michael keaton, awesome touch. Great effects.
however...
the elephant in the room is, why bulletproof his entire body except half his face? I mean, without that exposed area, he doesn't have to hide in a gun battle. With it? any lucky headshot brings him down. Total fail that the bottom half exposed there. I guess he'll be shot probably 500 times in the movie and nobody will hit that section, of course.
Look, I can suspend reality long enough to accept robot cop conspiracy premise... but exposed mandible? I think the the fck not.