I'm still hovering between a 4 and 4.5, but it'll probably be 4.25/5 
 I quite enjoyed this book a lot. Maybe I'm just hyping it up because it's the book that got me out of my recent reading slump... 
 I liked the setting and the plot of this book. Although, I would've liked more intro into the setting (like how the whole world is set up since they only briefly described it when a specific part of the world came up). Maybe it's because I like books like 1989 when they spend a good chunk of the story setting up the world for you, but that's just my opinion. 
 I liked the whole idea of Reds and Silvers, but it's very vague at this point, because there are still so many questions surrounding their blood... Hopefully, more of those mysteries will be solved as the series progresses. 
 And I like how there is more to the characters than they seem... (view spoiler)[ I like how Maven, how he always flip-flopped from being a good kid to a nasty one, but then it seemed like he was just hurt and heartbroken or if he was truly a cold hearted bastard. I also liked how Cal doesn't have a definite good or bad side too. He can be heartless soldier but he can also be sweet, but easily switches back and forth as well. I really can't tell who's in the wrong and who's in the right. (hide spoiler)] The book kept me on edge to the last page because I still don't know who to root for. 
 Mare also has a lot of potential to become a great heroine too, and I liked how she has the fight in her (kind of reminds me of Celaena in Throne of Glass in that sense at least). 
 I just liked anything that had to do with the powers in general really (training, fight scenes, etc). I loved the whole X-men vibe that a lot of other people have been describing them. 
 I can't wait for the next installment!