I don't get why people are so disappointed in this film

Rating: 8/10 (7 September 2019)

MINOR SPOILERS below.
Yes, this film does have plenty of flaws. I thought that the beginning scenes where Mike called the Losers back to Derry were WAY too short and rushed. The film definitely could have used another 20 minutes or so to flesh out the adult characters before the Jade of the Orient scene. I'm also still not a fan of the overblown CGI jump scares that they carried over from the first film. And there was a little bit too much misplaced humor, although most of it didn't bug me.
However, I think the good in this film definitely outweighs the bad. The casting is great, with Bill Hader as Richie and James Ransone as Eddie being the standouts for me (I especially loved what they did with Richie's character in this movie). At almost 3 hours long, I never got bored or lost interest. And honestly, while not perfect, I'm surprised that the pacing was as good as it was. And while overall the movie wasn't very scary, there were several genuinely intense, great scenes: the opening scene at the fair, the Hall of Mirrors scene, the scene with Victoria and Pennywise under the bleachers, and the scene in Beverly's apartment (minus the unnecessary jumpscare).
While objectively this film is a probably alittle worse than the first one, I enjoyed it just a little bit more for one reason: it felt a lot more Stephen King to me. This film felt almost EXACTLY the same tonally as the book, mainly because this film is darker and a bit more gruesome than the first film. And I loved that. Don't decide not to see this film just because of the mixed reviews. Give it a watch. I highly recommend it.