I got this from FirstReads, and I really enjoyed it. It's a good mystery flick, a little more substantial than some. I haven't read the first book in the series (evidently this is #2), so I missed the beginning of the relationship between the two main characters, but there was enough in here that I wasn't left in the dark.
I really appreciate a heroine who is good at her job in a calm, competent way. She isn't described repeatedly as drop-dead gorgeous (or the stereotypical mystery heroine -- petite and cute, but somehow with a very large chest -- I'm so tired of those), but she's good-looking and communicates well with people. She listens well and speaks well. She has good friends, whose characters are interesting but don't dominate the pages with zaniness. There's lots of info in here, so I feel like a fair amount of research was done, but to the extent that I knew it, it was accurate without being preachy.
In short, I liked the characters a lot. I liked the writing style. It was a good read all around.