I think the work of special effects and more importantly, the storyline were really good. It was not as creepy or chilly as a horror movie supposed to be, but all the artists did a very good job overall. Also, I really liked the girl's spider walk on the walls. Was it inspired from the movie " the Exorcist"? however, it was unique.
I think, if you watch this movie without watching the trailer, then you might get some unexpected scenes cause main movie doesn't have much jumpscared scenes other than in the trailer.