I agree that 90% of kings books are too long but I absolutely loved IT and think the length was part of the charm. The first time I read IT was over the course of a summer when I was 14 and I've reread it twice since (I'm in my 30s now) and nothing else brings me back to those long hazy neverending summer days like that book.

Although I also highly recommend 11/22/63 if you loved IT it's such a treat