Really entertaining book, though don't bother if you didn't like the first. This is really more of the same. Like the first, it's got an overall story but from chapter to chapter, it's more of a series of short vignettes. To me, that's fine because it is very entertaining but something to be aware of.
There's not a lot of world building or character development going on here. I think the only character with any development is actually Dark Detective. That being said, my only real criticism is the ending. I understand that the author wanted to get to a point, but how they did that just didn't add up. Characters made decisions based on what the author needed, rather than what made sense based on previously established motivations, so I was just left with a bad taste in my mouth.
That being said, I really enjoyed this and the first book and look forward to future releases.