Me, I like peaceful, understated, and happy. I write much worse than that. Also I can take a lot more, when reading, than Cat - she really doesn't like the dark.

Yeah. I can never really predict what I can take, and most of the time it's a matter of tone rather than content. So how to judge? I have to do it on a case to case basis. Because I like your style, I could probably handle more darkness than with another writer. But it's fairly complex, and not predictable.