Actually it was quite magnificent, I don't know why it's so critically rated, I love the intensity it emits when Duncan (main antagonist) shows. How deadly it portrays him as opposed to the mediocre know-it-all hit squad sent after him. And how professional he is in comparison. The end revealed a lot and you didn't even know why all it happened even when you think it's staring at you. I would watch again.
And recommend it for anyone even slightly curious.