Oh... my... goodness.
This game is SO good.
I almost don't want to review it. I'm afraid I'll ruin it for you or spoil some element of it. It is best experienced cold with the sure knowledge that you are about to embark on an adventure, with twists and turns and story and surprises and fun.
I encourage you to go play a session of this game before reading any further. And I'll post a more in depth review after I've got a few more sessions under my belt.