An aside on Francesca Lia Block

I've known a lot of folks in the past who have loved her work. Becasue of the genre of these folks, I always believed the books to be vampire books. Obviously, they are not. But it still brings me to: WHY? Why does she have such a hardcore following and is hailed by so many people? I'd really like to know. If anyone likes her or knows someone who does, I'd really like to know why. I'm not being sarcastic, and I won't make fun of them. I really just want to know why. To me, the had little to nothing to offer. There must be something in them that appeals to her fans. What is it?