There were good and bad points to the book. Was it better than "I'd Tell You I Love You, But Then I'd Have to Kill You"? Yes. Was it better than "Cross My Heart and Hope to Spy"? Maybe in some ways.
The title is, once again, cute. But when you get past the cover...
First off, the things I enjoyed:
1. There was a lot more action with a lot of true risks. The Gallagher Girls had to deal with more real dangers this time, not just ones fabricated by their teachers. More was at stake for them, so they invested more, and they got more out of it.
2. There was a plot twist I did not expect.
3. The book introduces Cammie's Aunt Abby, who is purely awesome the way a spy should totally be.
4. It sets the stage for you to look forward to things to come in the next book. It's not a cliffhanger, exactly, because there was some closure to the story, but you are left wondering about a lot of things.
5. Zach, oh super hot Zach, came back. We got to see a more serious side of him this time around. But the mystery around him never fails.
6. The characters, all the way through, demonstrate friendship to the truest level.
7. Some of the prose, when not overly flowery, was very neatly tied into the book.
The things that bothered me:
1. Cammie is extremely irresponsible, which is in character, but she took it to the extreme. Judging on incidents early on the book, she knew she did not have the capabilities to handle the enemies with her other three friends without any help, that the first time she got away because of luck.
2. She had a big epiphany about her first encounter with the enemies a long time after it happened, something that the readers already figured out when she first narrated the encounter. (*SPOILER, BUT IT'S REALLY NOT A BIG DEAL* Specifically that the enemies weren't after Preston, the Presidential nominee's son, which was kind of obvious because one of the attackers said, "Get her," not "Get him.") Maybe it's because she's experiencing post-traumatic stress or something and she shouldn't be expected to recall and analyze all details, but the way I read it, it seemed that she built up the suspense of her realization so that I was expecting something big, before I realized I already knew what she was saying.
3. I don't really enjoy Cammie's narration. It can be humorous sometimes, but the character's overall voice is unrealistic and annoying, especially when she repeats phrases over and over again. ("Gallagher Girls scatter to all four corners of the globe during the summer."; "I don't know if the girl in me or the spy in me..."; "Macey McHenry's face is on the cover of every magazine in the country.") I've noticed this pattern in the other two books as well, and it's a little too much. I wish Ally Carter had found a different way to word those sentences, because they were extremely distracting to me.
4. The symbolism that Ally Carter tried to include in the book seemed a little forced to me. There was way too much, also, to the point that it was purple prose.
5. So, I like that Ally left us wondering some things, but I didn't enjoy that we received almost no answers throughout the whole book. We found out the name of the enemies, but we don't know anything about them, why they're after who they were after, etc. She could have still left us some loose ends, while giving us something about the attackers.
6. The pacing didn't go well, so some parts dragged.
7. I found it annoying how Macey dealed with some of the stress. She's supposed to be tough, and maybe she was under an amount of stress that I can't understand, but I found her character immature in a way that I thought she had grown out of.
All in all...worth it? Totally. Will you want more? Absolutely.