I liked the idea of the camera work showing things through the "ghost's" point of view, but they never did anything that interesting with it.
The most captivating aspect of the movie was exploring the family's relationship/dynamic but with such an undercooked story, all of the "horror" elements just kinda fell flat and it never felt like there was something large at stake.
extra half star for Lucy Liu's blood curdling scream at the end... the only genuinely terrifying moment in the whole movie.