Tons of whining about length (which imho is silly, considering how long the novel is), 'the lack of chemistry' which would be amazing considering the cast has insane chemistry if you saw any interviews with them together and 'not scary' - that's just subjective, there's lots of people claiming Chapter 1 isn't scary. The only worrying complaint I saw is the messy first hour but majority claims the last act is amazing and imho it's the last act that always matters most