Ultimately, the game builds to a crescendo that it just can't support well in the last episode, which I didn't find very satisfying. But the middle was pretty strong. I'm curious to see what different choices and actions would do to the story, but like Until Dawn, I'm not sure I can stand to sit through that much teen dialogue again.
Apparently there will be a prequel soon, and later a 'sequel' with different characters and setting.