I think Ben Affleck gets sexier with age, and he's particularly sexy in this role. Gavin O'Connor isn't a very interesting director, but he certainly has a tendency to make films with good characters of a specific type (the type that connects Affleck's character here to Tom Hardy's character in "Warrior").
Ben Affleck's engaging performance as a highly-functioning autistic CPA/Hitman would be the reason I would recommend anyone watch this. Aside from that, the writing suffers from a serious lack of purpose. I spent the whole film waiting for that moment where I would understand the true value of the film, but it never came, as if the writer had the twists in mind first and then filled in the blanks around them.
I like the way people on the autistic spectrum have gone from silent head-bobbers to superheros. The back stories for Medina and King were horrible. Cynthia was such a bad actor that she seemed to drag Simmons down with her. That whole storyline could be excised. Ben did a great job, especially with the walk and mannerisms. Kendrick was great, but she needs to stop dating assassins ('Mr. Right').
Surprisingly satisfying and oddly effective, the gradual morphing of expectations/plots was quite adept but it could have easily been sliced into 3 dumb movies or 2 okay ones. Though I suspect it's unlikely I wouldn't mind seeing a sequel or smarter action movies more often.
Laughably bad. Every scene and line were either blatantly cliche, horribly executed, or both. Nothing made any sense, especially the characters' motivations. "You weird fuck! By the way, you never call me." Christian Wolff (of course it has 2 Fs) was a "smart" character written by stupid people. Much more BBC Sherlock than Anton Chigurh.
A little long-winded, given the mediocre depth and range of the story, but a fairly effective action-laced drama that gives Affleck room to play with a complex and highly-cerebral character. The action itself was good, though the twists and turns in the story were meandering at best and O'Connor should've spent more time fleshing out the atmosphere. Not a missed opportunity, but certainly not as thrilling as I hoped.