Excellent, a fusion of classic horror and originality.

Rating: Null/10 (17 September 2011)

One of the first things you will notice about this film is creative camera work. The camera follows the characters around at different angles, hides things from the viewer that are scarier when revealed later, stays in one spot while the character dashes around, alternates between close-ups and "security camera style" fly-on-the-wall angles.
The film also approaches the normally ill-defined, "take our word for it" astral world as both mysteriously creepy and eerily well-defined. The usually stone-still ghosts may remind Doctor Who fans vaguely of the Weeping Angels. The atmosphere and setup, throughout the whole film, are excellent, boosted by background music that is usually a frantic violin solo, calling back to classic horror films Now, my only complaint for the film. The Demon that is, more-or-less, the character that best fits the term "antagonist", is sketched out in the psychic's notebook as a figure that was dead black at the limbs, but whose tone faded into a blood-red by the time it reached its face. I expected something similar for its true, revealed form. The actual revelation.... Well, it appears Darth Mual went to this place when he died, and he replaced his severed legs with those of a goat.
The ending, in my opinion, is perfect. No one really expected that Josh could make the Old Lady go away by screaming "go away", but it was surprising when we, expecting a twist (for most, we expect the tried-and-true "the Villain succeeded after all" bit) saw that a kind-of background character had succeeded in crossing over. And best of all, just as Renee is turning around, the film cuts out. We never see the face.
Overall, definitely worth a try.