3 stars! 
 I didn't enjoy this book as much as I thought I would. 
 It started in the middle of the action (and I had no idea what was going on), it almost seemed like I had skipped some of the initial pages! 
 Then, it had a very slow development... and I got a bit bored with it. 
 What I did like was the all Distopian reality and the senses! 
 About Aria and Perry's relationship... they are, initially, enemies, then, they become allies and then, as they go through hardships together, they become closer and closer. There's No Insta-love here, but Still it felt a tiny bit underdevelopted to me... I would have liked to have seen them together more, to have their relationship shown in more detail, or in a deeper way. 
 Then, there's the other characters... I really liked Roar and Cinder; and I would like to know more about them (a book on each of their stories would be great! >_<) 
 The book did get better towards the ending, and it became a bit more exciting to read it, but Still, it could have been way better, it felt like a really long book ... and that ending was no end at all! 
 I might continue the series, since I'm curious about what will happen to Perry and Aria (And I wanna know more of Cinder's story and what will happen to him)... 
 Still, I definitely won't be reading book #2 - Through the Ever Night - now, since I have so many other books to read that have catched my interest a lot more than this one.