If you like a lot of heart-stopping action, and an unbelievably strong female protagonist, and you don't mind a novel with violence that touches on some very dark topics, this series is for you. Zero has such an amazing drive to right as much evil in the world as she possibly can, that she will go to any lengths to do just that. It's intense and I had to keep grabbing the book to read a little more, even if I just had a few minutes. There were times when I thought some of the things Zero was doing might be physically impossible. But then, I was reading it while the Olympics were on and I sometimes thought what I was watching with my own eyes must be physically impossible. Turns out, it's not. It just takes tremendous drive and training. Zero is a gold medal Olympian of vigilante justice. What she does may be within human range, but only for a tiny percentage of us. You can't help but cheer her on! Can't wait for the next book.
I did receive an ARC, but this is my honest opinion.