I gave up before even coming halfway. What I read to that point depressed me so much that even after trying to pick it up again two I still actively disliked reading the rest. That the book is depressive is not strange for a dystopian novel, yet here it's just bleakness all around; all characters going through the motions (save one) and they are as flat as a board. Even the protagonist wrestling with his conscious does it in such a way that I don't care at all. 
 If you do not enjoy reading depressing books, this isn't recommended.