I've just blown through everything Butcher has written so far in the last three months. The only bit I didn't enjoy was when I realized that the Codex Alera is actually 6 books, not 5, and the last one isn't out yet :(

Butcher is a solid practitioner of the "Let's come up with a cool character and then find some ways to screw him over and see how he reacts" School of Writing, which I find I generally enjoy if I like the Character.