For the most part I really enjoyed this book. I thought the storyline was really interesting, I thought it was fast paced and everything flowed really well, and I liked reading something so unique.
I wasn't a huge fan of our main character throughout the book. She started off as such a badass. But then you start to see her slipping. She's losing focus on her mission for reasons she shouldn't be, she's turning inward and starting to question herself and I thought it took away from the ending of the book. Because the badass who was going to kill Hitler was now the girl who might not actually pull the trigger. That's how I saw it anyway.
Otherwise it was a good book and I'm looking forward to finding out what happens next.