First of all, don't let your kids watch this. I don't recommend this for young children.
But for thrill seekers and horror movie enthusiasts, I think you would enjoy the documentary.
I'm seeing a lot of comments about people being 'cursed' by watching the film. I can't say whether this is true or not. Personally, I was completely fine after watching it. The only effect the documentary had on me was just the normal jitters and feelings of paranoia and anxiety. Which is normal after watching any kind of scary film.
In my opinion, I enjoyed watching the film, and I think this film should serve as a warning to others not to mess with the supernatural without protection.