This had been a pretty slow series for me. I've enjoyed each book in the series but not one thing in each book stands out to me. In fact, I would rate this one about 2.5 to 3 stars. It was pretty steady through the whole book and not very interesting until almost the very end. Even then, it was a bit unexciting.
The next book by Nalini Singh seems like it will be quite interesting. I hope the last one in the series ends up better than the rest.