Well i've had the game since I was 6 and still haven't finshed it yet .
But the story is so great that it pushes me foward in the adventure!
It isn't really that big with (normal) people. But it has high critcal acclam.
I do know that my brother talked to some Lucasarts Adventure nuts at school. So maybe its bigger here.
In my view, Grim Fandango is only beaten by Monkey Island.
Some Screenies