I second that. This is a movie with great atmosphere. I loved how slow burning and tense is was. Reminds me of Scratches in a way.
Also it's not for everyone, I must admit. In this movie the journey is the important part, not the ending.
If you like this kind of movies I also recommend The Borderlands,The Possession of Michael King, Noroi (one of my personal favourites), and The Rite.