Hi,
There is a subforum called Reading Recommendations that would be a better place for this question. I would suggest going to his website:
http://www.jim-butcher.com/ if you have questions. He has there samples of the books (the first few chapters of each book) so you can see for yourself if you like them. The books are great but you should know that it's a long series and there is still a long way to go.
Welcome to MR!