Absolutely terrible. 
 DNF at 57%. This is one of those times where I legitimately think I've read a different book that my friends. In theory, Control should have worked for me. I really loved the idea of a conspiracy and the secret being in Zel's genes. I really thought these were great ideas and I was completely looking forward to reading about it. Then I started reading and my happy cat died. 
 Slut-shaming 
 Zel, our main protagonist, is constantly slut-shamming another girl named Vera, who is very shapely and has no issues with flaunting it. From the first time they met, Kang used a the common "slutty, mean girl" trope as Vera's characteristic. I didn't see this as anything else as a plot device to make Zel seem more spechul and spark sympathy from the reader. I already felt bad that Zel lost her dad and sister in the car crash (this isn't a spoiler since it happens in the very first chapter), but when she constantly went around and said things like this, I was less and less inclined to root for her:I'm not shocked by the fact that she's wearing the latest fashion from Hookers-R-Us.Lovely. 
 Insta-love with a terrible love interest 
 Zel almost immediately falls in love with the resident bad boy. I wouldn't have had too much of a problem with that if he also wasn't a dick to her. Like a HUGE dick. He's rude to her and she continues to pine over him and make excuses for his behavior. Then later, he just happened to really care about her too, because of reasons. 
 I don't know if things improved from there, but I was too disgusted to care.