I find his earlier works are better. Salems Lot, Carrie. The Shining. His short stories are also usually good. He also wrote a lot of early stuff under pseudonyms.
But his later works are hit or miss for me. “Pet Semetary” was an interesting idea ruined by characters doing stupid things to move the plot forward. “It” has a huge following, but the underage orgy scene is disgusting and seems like something from a writer who used too many stimulants while writing it, and a publisher that didn’t have editorial control over his later works. “The Institute” was awful. Doctor Sleep was an unnecessary sequel. Etc etc.