I have always found it easier to deal with her short stories than her novels. What is dark but tinged in hope for a single short story can be much, much harder to deal with over the course of an entire novel. But that's just me, and it's not to say that I don't like her books; I just have to be careful about reading them. If you liked her short stories, then that's probably a good sign that you'll be okay with her novels too.