So I'm pissed at my self... because I always wanted to read this series, and I always end up saying later. And now after finally reading it and falling in love with it, I want to kick my self for taking this long!!! I honestly couldn't stop or put it down unless it was necessary for me. I was so obsessed. that's why I'm gonna give the whole series a review in here. I didn't get to do one by one. 
 First of all I would like to give a special thanks to Jennifer because who thought aliens could be beautiful, sexy, powerful... and not gross, or green? yeah never thought so. 
 okay, so when I started Obsidian I was kinda struggling with the hot and cold thing Deamon and Katy had, I was specially more annoyed at Deamon. But I couldn't not love them they had that perfect chemistry between them. Kat was very sweet, and thorough out the story I started to learn how freaking strong she is. I really loved her personality. As for Deamon he was the kind of guy you wanted to kick his ass, and kiss him right after. I appreciated Oblivion so much because I was so confused most of the time, and I was thinking what the hell is going on in Deamons head. So it was as well pretty awesome to get his point of view. He was an arrogant sonofabitch but I fell hard for him. 
 The story started a bit slow for me, and by the second book Onyx I was a bit irritated with Katy. She kept pushing Deamon, and all the shit she pulled with trying to protect, to help and be involved in everything dangerous. And I especially hated everything happened with Blake. 
 Though all started to change by the end of the second one, and the start of Opal,their relationship, and the plot got interesting. And sure as hell it was so so so much interesting in the end because everything took a whole new level from there. 
 Origin & Opposition were honestly the best of the series. Because not single thing was wrong, her writing was flawless it -was heart racing-setting on the edge of my seat thrilling-. The plot, the new characters, the development in the story, and witnessing the heart itchingly beautiful relationship between Deamon and Katy. How far they become, I got to witness them grow up, and grow more strong. I got to see love so deep so deep so beautiful it was uncanny. By each page I learned that them together was power in itself. They could make the impossible. I was in awe of how far they become. I also got to laugh because even with the all love they still bickered and kept each other on edge, I also cried for all the loss. To put it simply she gave the best and most beautiful ending ever for an amazing series. Everything was perfect. 
 I'm not saying much more because this is one of the stories you can't say a lot, because you will pretty much spoil the experience for someone else. Even naming the characters you love and hate will spoil so many things for you, because you will be so shocked by the people you will end up loving/hating. I'm actually really sad because finishing this it will be so real and it's just over for me. Because I really loved so much. I'm really going to miss everyone. I fell in love with so many lines, I can't share all but I wanted to share something Deamon said. So here's a line I fall in love with and I wanted to share.. 
 "I broke every rule of my kind to heal you and keep you with me. I ----- burned down an entire city to keep you safe. I've killed for you. Did you think I'd forget what you mean to me? That anything in this world--in any world--would be stronger than my love for you?" 
 I will for sure not be forgetting them.