The simplest way to describe this is a mess. What could've been a fantastic end to an amazing trilogy ends with a whimper and a lot of whys
The core idea of the gameplay set up, with it's flow chart and decision game is excellent but the story and characters they tried to fit into this framework just did not match. Add on top of that some bs explanations for stuff and it all starts crumbling down.
It's still has its moments though and the pacing is very good in this one, just be expecting to roll your eyes and shake your head through parts of it