It's your typical naughties stoner movie, only taken to a DEFCON 2 level of annoyance for practically the first half of the movie. Skylark's character (the interviewer) receives most of the blame for this. It gets "better" by Seth's standards for humour at some point - couldn't give you a minute mark precisely, but the dynamic of the movie seems to change. Watched it with three people and we all felt that way about it, so yeah.
Props are inaccurate and sometimes scream cheap as hell, like Koh and Yu's uniform ribbons are a single plate of the cheapest plastic, they also seemingly used a bunch of decommissioned Canadian Iltis for that last chase scene, 3D scenery is obvious, a trait seen further and further in your average productions since Michael Bay made fake CGI alright by popular standards. I'll give the dated Soviet tanks a pass, evidently.
It mocks America about as much as it does NK (mentioning incarceration rates and the likes). But the political statement of the movie is rather weak, if there's really one.
I feel any time I spend doing a detailed critique of the movie is wasted, so I'll just stop there.
Merry Kristmasu~