I had never heard of David Hewson, I just happened to pick this book up, liked the sound of it, and so bought it.
It is a fairly good detective romp around Rome with dead bodies, mob culture, mopeds and a bit of history and weird stuff thrown in. Sometimes I found myself having to turn back to earlier parts of the book, as certain things I read didn't add up, but apart from that it was a good book and I would buy the first in the series (as, true to form with me, I have managed to read them out of sequence!).
I look forward to any other Nic Costa novels in the future as I think he will develop as a character.