I totally agree with CGI-Quality - 9.5
I haven't got a lot of VG$, but thought I had to bring my 2 cents to the table.
I LOVE this game... sometimes I would just stare at the scenery and the changing sky palette. It has an astounding amount of detail, and a very fully realised gameworld... I can't wait for a sequel.
Also, as a complete aside, jumping from heights in the game actually gave me vertigo :D.