I like Chain Reaction. 
 ***** 
 WANTING MORE. 
 Chain Reaction left me disappointed. Sure, there are good moments here and there; unfortunately, it was not packed with the same punch as Perfect Chemistry (my fave among the three) and Rules of Attraction. My conclusion for the series? I still (and will always) have the hots for Alex Fuentes! Brit, oh you rich, lucky, white girl. =) 
 Luis is not as cool as I thought he'd be - the only point he got from me is that he's pretty smart and ambitious. He was like coasting the sidelines while Alex and Carlos are in the scenes with him - he barely registered as the male lead! He's less charming than Alex and less arrogant than Carlos. This made me think: Is he really a Fuentes? Believe me, Luis asked this very same question to himself. I love Brittany, so-so for Kiara, but for Nikki - man, I don't like her AT ALL. She was heartbroken so it's ok for her to poison her best friend Kendall's relationship with her cynicism? Yeah, right. She acts high and mighty (boo!), and she treats Luis like crap. Nikki got hurt but it doesn't give her the right to hurt other people back. Carlos made all the difference in this book. He stole the show from Luis! Carlos is still funny, cocky and uber-sweet. Then there's Alex and Brit trademark banters. Yeah! 
 There's this line where Nikki (or was it Luis?) says she's falling for Luis because she likes talking to him. Uh, wait a minute. There was no talking involved between them, only kissing and groping. Then, the dialogue went sappy to sappier until the end. Yep, it was annoying. 
 Chain Reaction is still likeable but I've had better romance than Luis and Nikki. Did Simone Elkeles ran out of gas? Because Chain Reaction did not live up to the Perfect Chemistry series hype.