I agree that it wasn't as scary as it could've been. That said, I'm rather difficult to scare when it comes to films. I have a weird sense of humor about gore. You can get a little jump scare out of me now and then, but that's just a cheap thrill. The cool effects and the look of Pennywise made up for the lack of all-out horror.
Scariest thing in the film? Bev's dad.
Scariest thing in the film? Bev's dad.