I remember playing it for the review-
http://www.psxextreme.com/ps2-reviews/499.html
It was a very atmospheric game, and if I recall correctly, it was bogged down by sluggish and flawed gameplay. But it was very unique and a well-done survival/horror title, for the most part. It just focused a lot more on the environment and story than the actual gameplay, which is the reason for that score.