So you wanted to shape the narrative? Congratulations, because you did!
Characters reacted differently depends on how you were. The events still played out, but in different ways.
It gives the illusion of choice. Had I not read other people's reactions, I'd have no idea who could be saved or who would always die. It reacted well enough to my play style that I couldn't guess what points were story-critical or which were chosen by me.
And the gameplay?
It's an adventure game with QTEs. For me, I played it as I would a visual novel, just with more gameplay. Maybe that's why I'm not complaining about it not being a dakka manshoot/puzzle game.