Great watch, will likely watch again, and do recommend.
This is probably one of the best assassin movies I've ever seen ("Smokin' Aces", "Kill Me Three Times" and "Hanna" come to mind as others), the best thing it does is be refreshing, normally when a "character comes home after a long time away" trope happens, it's all about re-integrating, and how that affects the family, and it becomes a dark dramedy about dysfunctional families.
I'm not saying it doesn't to that, to a degree, but it does it in a spectacular way, and keeps it brief. It would actually be a solution to the main advers... read the rest.