I didn't get the same feeling of cheesy dialog I had from the last couple of Patterson books I've read. In fact, I haven't really felt the dialog in these Women's Murder Club books was bad at all. Yes, I think that sometimes there's an attempt to make the female cops and lawyers/prosecutors sound over-the-top tough, but that's a problem with a lot of stuff in this genre - it's like the authors think people won't take a woman in law enforcement seriously if she's not a ballsy tough-as-nails broad.
I had a couple minor complaints about the book. It's a women's murder club, and the concept is that these women pool their skills and resources to figure out whodunit. But that wasn't the case in this book. Claire was there, of course, being the chief medical examiner, but Cindy, the reporter, and Yuki, the lawyer, don't contribute much at all to working out the mystery. They're there, but mostly as supporting characters (especially Cindy).