A good time but not particularly frightening, nor is it exactly the horror flick that it's billed to be. I felt that more could have been done, but at the same time I think it achieves everything it sets out to do. I give it points for being more suggestive than blunt.
Even though I found the explanations for many of the "supernatural" events to be improbable and a bit of a letdown, I liked that there were enough unexplained phenomena to suggest that the house was indeed haunted. That is probably one of the best things going for this movie--the several loose ends that nag at you after it wraps up.. In a strange way it reminded me of Romero's similarly skeptical film Martin, which also plays with the audience's expectations and willingness to suspend disbelief in the supernatural.