That guy a is piece of work. Really. But hey, enjoyable read 
 Merged review: 
 I was worried at first. I was reading about Katy and Dameon and somehow Edward and Bella guest staring. Katy comes to a small town with her mom. Then Insta-Love with the gorgeous guy that no girl approaches. Except the beautiful Rosalie *cough* excuse me Ash who antagonizes our main character. Then Katy gets saved from being crushed by a truck by Daemon. Seems familiar? 
 Even with all that, I really enjoyed Obsidian. The attraction and love/hate relationship between Kat and Daemon is well written. I really plunged into the story like I was there myself. And seriously, isn't that we want to happen when we read books? *grin* 
 So apart from that I'd say the characters were believable and I want to say Armentrout made a good job about how the characters felt toward their lost loved ones. It annoys me in some books when people around our main character recently passed away and they don't feel like they care. Katy lost her dad 2 years previous the beginning of the book. Daemon and Dee lost someone too. And it works. I felt like it changed them. Their actions are determined by it and their personality as well. 
 I am glad I picked this book up. There is not a lot of alien YA out there. And good alien YA for that matter. This was good. I am a bit afraid for the second one though. Why do alien books/tv series/movies always need to deal with government issues? Yeah in real life they would be all of it. But somehow in books/tv series/movies it's always boring. I ordered my copy but I hope not to be disappointed.