I HIGHLY recommend this to horror fans or anybody looking for a good, moody scare. It's a great little mystery with some scenes that will absolutely unnerve you, like Tomas' debut *shudder*. Really looking forward to the DTS-MA track - God bless you Sony Computer Entertainment!
I just finished watching this film, and I too thought it was excellent. Like most, I was intrigued by Guillermo del Toro attaching his name to this project as a 'presenter'. I was also quite concerned that the viewing experience might wind up like a number of 'Quentin Tarantino Presents' I've seen. Fortunately that was not the case, and it would seem that del Toro takes his 'presenting' seriously.
As others have said, The Orphanage is a very well done, thoughtful 'horror' movie, which is hard to find now-a-days. For those of you that miss them, like I do, I highly recommend you give The Orphanage a try.