I dislike how easily Vanessa gets swayed by evil guys. It makes it seem like that's all she cares about and that she's weak. Hopefully, this will be done for the rest of the series.
I did find it entertaining what her secret birthday wish turned out to be. The whole time, I was thinking it be sex, and that made me sad because the girls are all so young.
Oh, another frustration that I have had actually since the first book. When the girls all lock arms together, and used their combined power, what the heck is happening? I doesn't describe what's going on very well. Just some sort of force pushed at their enemy. How is that not a violent thing? I thought they couldn't use violence.
Anyways, back to the story, it was interesting to learn a little more about Maggie's past, and I liked that the whole book wasn't centered around Planet Bang. Vanessa grows as a character and begins to acknowledge parts of herself that she's kept hidden.