What I loved:
The cover, obviously, is gorgeous and eye catching.
Skye's character is a genuine nerd, not just a nerdy-for-the-sake-of-being-quirky nerd. She was raised on Star Trek and Doctor Who, and it shows throughout the story without being overdone to the point of making her an outcast. She feels like a real teenager rather than someone who has been shoved in a box for the sake of a story.
The setting of a locked down DC is believable and places the reader right in the thick of the action, allowing the plot to unfold naturally and make overall sense.
Speaking of the plot, Zaken takes a familiar premise and puts enough of an interesting spin on it that it didn't feel tired. The story was about more than just aliens, it was about humanity and our reaction as a race to change. Both aspects were fully realized and blended nicely with the romantic core to keep the reader interested.
What left me wanting more:
The pacing of the book caused the beginning to feel somewhat repetitive and the ending a bit rushed, but it didn't have a real negative effect on the story.
If you're a stargazer, a space nerd, or just someone who loves a refreshing take on aliens and humanity and love in the midst of it all, this book is for you.