Lets just say as Oculus Rift user at least, I was never really fond of snap turning. It simply doesn't feel right to have just the ability to suddenly just instant turn your direction. I'm rather accustomed to more smooth turning like in normal games.
At least as far I could tell from current turning options, you got either physically turning IRL or snap turning.

I also don't know is this a bug or something but my comfort settings don't seem to save, but rather get reset inbetween lobby, starting a level from lobby and restarting the game.