While I think It was a good movie and I definitely would listen to everyone who said to watch it, I don't really think it was that scary.
I feel like scary movies that try to be scary with the monsters and gore and horror house effects don't really even scare me. The movies that really get to me are the ones that talk about ghosts or evil spirits, or ones that have evil elements and that could actually be real. Those are the ones that really keep me up at night or that will pop into my head when I'm walking alone at night or something and continue to freak me out.