It's not a bad book. The plot was interesting and not, despite the setting, overwhelmed by an excess of explicit sex. It rattles along at a good pace and offers well researched and sometimes quite shocking background.
On the downside, the end wasn't quite as shattering as the prose would have you believe. I'd seen it coming from about halfway through. Also, I found the characters one-dimensional in the main, and rather under-developed for my tastes.
On the whole, though, a reasonably entertaining way of passing the evening. Steer clear if you're squeamish or own a TVR.