I read the first book and before I finished it, said I didn't like it. I said this because there are so many grammatical errors. I just started book 4 and my opinion remains the same. It does not appear that any of the books went through the editing process.
I have only continued reading because I love NOLA and I want to see how the story ends. If it does not end with book 4 though, I don't really think I will continue.
I agree with another reviewer in that some of the actions and storylines contradict what happened earlier in the series and there is no explanation as to why. Again, I contribute it to the sloppy editing (no editing).
I also want to know how these books are based on true events because I don't think they are. I even tried googling it but found nothing.