I'd probably give it a good 4 stars so far! (read 40% on kindle so far) 
 People say Adelina is a villain. Not really. I wouldn't exactly call her a villian. She's just someone who's broken inside and wants a little revenge...Oh wait...That's a villain ;_;. Another thing. Raffaele. I just love Adelina and Raffaele's relationship (don't be alarmed, this does not have a love triangle to my knowledge *hallelujah*). Call me crazy, but doesn't he remind you of Magnus Bane from TMI and TID? Just something about him. And Enzo. He's not our gorgeous Day from Marie Lu's Legend series...He's different. I love him, I don't even know why. I usually fall hard (really hard... *coughcough Jem Carstairs coughcough*) for the sweet, adorable guys, but Enzo is COMPLETELY DIFFERENT. He's dark. Really dark. Like a deep-blue-emo-haired-dude-wearing-a-spiked-dog-collar-dark (no offense to any deep blue emo haired dudes wearing spiked dog collars, of course). Like I said with Raffaele...just something about him. I totally ship Adelenzo! His intensity and darkness is only a shell...that will definitely have some cracks in it. His nickname is The Reaper,(that made me like him too) also. Enzo is just so perfectly badass. Every time I picture him, I picture Altair from Assassin's Creed (video game. awesome.) with fire coming out of his hands xD. Teren, though, I don't really like him/her. You may be wondering why I put him/her. The first time we meet Teren, I couldn't figure out whether or not he/she was a boy/girl. I don't know why. I seriously don't. And I still can't figure it out. What ever (i'm just going to call Teren he for right now until I'm sure) he is, I don't like him. Whether or not he's a good guy, I don't trust him. Plus, the last thing this amazing book needs is a last-minute love triangle (I'm only on 40%, remember?)if that's whats going to go down *gasps at the thought*. Anyway, that's all I have to say for now. 
 UPDATE TO COME! 
 UPDATE: FINISHED READING 
 Oh 
 My 
 God. 
 Enzo. 
 My lovely, dark, emo Enzo. WHY DID YA HAVE TO GO?! I didn't think I could like Enzo more than I did from the start. I was wrong. I was so so wrong. The more Adelina liked Enzo, the more I liked him. He wasn't the kind to show his feelings, or even smile. Adelina made him smile. Another thing, while he was dying, Adelina was like, "Am I mad because of Teren or am I mad because Enzo betrayed me?". GIRL, HE DIDN'T BETRAY YOU. STOP THINKING EVERYONE IS BETRAYING YOU BECAUSE HE DIDN'T! HE REALLY LIKED YOU FOR CRYING OUT LOUD! I was just so shocked when he died. I literally gasped out loud and started tearing up (yeah i'm emotional....don't judge me)! It's not fair. It's so not fair. He just...Teren...Adelina could have...UGH. Now I'm afraid. Really afraid. Afraid of Raf ending up with Adelina. I CAN'T LET MY SHIP SINK! OH PLZ NO!. So yeah.You get it now? Also, I'm not saying it was instalove or anything, but I like to have my books where the two characters sort of feel something from the very beginning and it slowly progresses, you know? I just think Adelina and Enzo's cute relationship just came a teeny tiny little to fast and a bit too late within the book. But it was so adorable! 
 Teren. You little piece of crap, you! Adelina WILL avenge Enzo's death! If not, I'LL KILL YOU MAH SELF. Btw, I made no progress on figuring out whether he is a boy or girl. I don't know why I can't figure it out. Halp. 
 Even though I'm actually really heartbroken because of Enzo's death, I'm adding a star. 
 5 stars for you, Marie Lu. You never fail to surprise me with your wonderful books. 
 Favorite Quote: "It's the Reaper!" Teren shouts, pointing at the boy with a drawn sword." -The first time we meet Enzo *sigh* 
 Btw, I was listening to First Of The Year by Skrillex while reading this book. IT GOES PERFECTLY WITH THE STORY! Go check it out!