I mean, it definitely helps. The production quality is insane. But the fact that the choices (or mistakes) have actual real impacts on the game going forward are as big as far as I'm concerned. I ended up with my hand being forced into combat early that made an encounter with a potential party member immediately hostile. That sucks, especially since I wasn't trying to do what happened in the earlier encounter. But in terms of a world feeling alive, having it actually react to what you do is pretty damn significant (unless "you're small and irrelevant" is intentional).