If you like the Dresden Files series then you should be mostly satisfied with this book since it's basically more of the same. That's the problem really, these books are really getting formulaic, to the point where I'd really love to see something truly different from the author.

For instance, Jim Butcher is hitting the limits of keeping his series in a first person perspective. Some of his supporting characters are just as interesting, if not more interesting than the main character - and it's a damn shame we don't get to see scenes from their point of view. The main character (Harry) always pieces things together quickly and far too easily, making leaps of logic and drawing conclusions that seem to come out of nowhere.

Also, it's starting to get really irritating how unfamiliar Jim Butcher is with Chicago. In every single book there are always several parts that make it very obvious that the author is completely clueless about how urban most of Chicago is. Hell, I don't even live in Chicago, but I can tell that Jim Butcher knows jack about the city.

On the other hand, it's still pretty solidly entertaining mindless fun, even if it is getting rather repetitive.