Seems like I'm in the minority here, but I loved it. I'm pretty sure what brings it from "good" to "fantastic" for me has to do with my lack-of-male-role-model issues, so all of the subtle and even not-so-subtle father figure shit really hit me in the feels.
Dunno, Affleck seems like a pretty fantastic writer/director, and at least an above average actor, as much as I'd like to hate him for his full-retard shitlib IRLness. This is one of my all-time favorites at this point.