This is a good book. I really liked Roth's treatment of the subjects of fear and bravery and the idea of a youth's coming of age and sometimes needing to distance themselves from their parents ideology and even their physical presence. I also appreciated Roth's way of describing some of the higher virtues like selfless love and compassion. She really did a great job with these! 
 This book has a thoughtful plot and a good splattering of foreshadowing and plot tension and release. I also thought Roth did a great job of helping the reader to really "connect" with the main characters and sympathize with their experiences and choices. The book is fun, fast, and exciting. 
 That all being said, I felt the book clearly defines itself as a youth fiction read. There wasn't quite enough depth and thought provoking incites that would encourage me to consider recommending it to adults over other literature. The writing itself was good, but it seems evident of someone who is just starting their writing career. I understand others would feel differently, but I found the encouragement of tattooing to be a little adolescent, as well as drunkenness being consider "being real." There was also the love story that to me seemed a little pubescent and crush-like, and it just ads itself to the rest of the main body of work that the general media put out that over emphasizes sexual appeal and intimacy. I did, however, appreciate the restraint that the main characters had, (which I see as being unusual in our day and age.) 
 All in all though, great book, and I'd recommend it to teenagers 16 and older. 
 Here's a great quote: 
 "I might be in love with you." He smiles a little. "I'm waiting until I'm sure to tell you, though." 
 -- Veronica Roth, Divergent