It

The effects, the cinematography, actors, pretty much everything was objectively good in this movie. But ultimately, as a horror film it was extremely forgettable and pointless. Mainly because everything that we're supposed to be afraid of isn't actually scary because none of it is actually real (in the context of the movie). Most things are revealed to be nothing but a figment of the main character's imagination. Pennywise does prove to be a physical monster when we see him kill people, but it isn't clear what his capabilities truly are. How am I supposed to believe that he can casually teleport around public spaces without anyone noticing, or that he can somehow make himself appear in old photographs and pre-recorded television shows. It isnt consistent and it just feels like a compilation of cheap scares. Like the writer used a slot machine of horror tropes to create his character.