Overall the book was very well written. I am a fan of Robert Greenberger. The only complaint that really had about the book was there there were two villains (both female, both attractive (according to Stark), both connected to Tony Stark and/or Stark Industries). I kept expecting them to reveal that they were actually the same person and when that did not happen it was disappointing cause it was difficult to keep track of who was who until the climax of the book itself. In the end, the Villains, both of whom are throwbacks to the early days of Iron Man and not well known to most modern readers, needed to be better drawn out, the the rest of the characters and their interactions were interesting and fun to see how they would solve the problems thrown at them.