It isn't all that great, actually. Really cheesy and very predicable of how certain scenes are gonna turn play out. However, I guess that's the charm of it all, because I would consider this one of my guilty pleasures.

Tells a fascinating and unsettling true story, and does so well, without pretending to have all the answers.

if their story seems completely bonkers, almost like a feverish work of fiction, you ain't heard nothing yet.

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.