More funny than scary. That might be cool for a fanboy or someone for familiar with Wheddon's work but 80% of moviegoers go to a movie to see the movie as marketed. I.E., You market a movie as a horror movie, I go to be scared. You market a movie as a comedy, I go to laugh. This movie fell somewhere in the middle. I'm not saying it's a bad movie, I just left the movie feeling blah about it in the end. Nothing memorable about it other than it had whitty lines and a few "look out behind you" kind of moments.

Solid 3 out of 5 stars in my book overall as a movie.
Would give it 2 out of 5 stars if basing it off being a horror movie.
4 out of 5 if basing it off of being a comedy flick.