I'm now at the process of going through the game's different endings and seeing how they all pan out. I'm still really impressed with the story and characters in this, but the performance issues are doing their damn best to keep me from getting immersed.
Case in point - really touching moment with a big crowd of NPCs looking up at me, all T-Posing menacingly. Also, a thrilling action scene which I was really enjoying before the game decided to crash. God knows where the last autosave was too, which is a real pain as the game isn't allowing me to save at many points of these ending sequences.