Lots of reviews on how emotional and beautiful this game is, and they arent wrong or exaggerated; this is a game you wont forget. I want to make sure people understand that this is a full on resource gathering/managing, building and crafting game as well. Lots of freedom, lots of places to go, lots of things to do.
It's not on rails at all, but the story is always there, waiting patiently for you to sink into it.
I'm quite finished yet, I'm at least 20 hours in though, and I'm excited to jump back into it everyday.