Are you a fan of Stephen King? If so, what do you like about his work? If not, what don't you like about his work?

I love Stephen King. I know that, as far as modern literature, it’s mainstream, but there must be a reason why. I like how the settings are realistic ones, thrown into chaos.
I like how most of his books have double meanings, where the indirect concept usually is actually more important than the initial death clown or zombie cat.
Any opinions?