The problem is the base systems are so broken that, even when you are using a mechanic you feel like you are exploiting the system.
And the character personalities were well defined to some extent. But the orphanage scene and along with the fact that the characters seem to change personalities depending on what the "plot" wants them to do.. ...I am not so sure. The story is a mess. Complexity and mess are not the same thing.
Astounding music though. Probably one of the best videogame music ever.
As a video game I see tons of bad design. It's a cool interactive movie, it seems like a hybrid of point and click adventure games and jrpgs.