I loved this story! It has great character development, a fast-moving story line, and action galore! The two main characters are strong, intelligent, fearsome, but compassionate females and many of the secondary characters are strong females. There are many great male characters as well. I also liked that the author goes into great detail about how a spy organization works.
I found myself anxiously looking forward to picking up the story if I put it down for any reason to find out what would happen. The action sequences are complex and the planning for the 'ops' are sometimes very complicated. You may have to read sections more than once to get all of it.
I loved that this book has a well-defined ending and wrapped up some loose ends. I will be looking for the next book in the series.