What knocks me out is how much I'm convinced by the whole thing. Every sad detail makes perfect sense. There is so much wisdom here that it never overreaches, no matter how deep in the storytellers get.
In particular, the medium of digital video is used in an outstanding way that adds authenticity to the experience. Think about it- most of the hand-held video work we've seen is of our own family events. When we watch the only scene in which Christian weeps, with Gbatokai leaning over and giving moral support, it could almost pass for a candid moment in a homemade documentary.
I've seen a lot of good family dramas, but rarely have I had such an urge to hug the main character and unleash profanity at several of the others.