I enjoyed this book - I thought the writing was beautiful and I enjoyed the history, there were some details of WWII that I wasn't as familiar with included in the story.
However, I do agree with many of the reviews in that there is not enough character development, and I struggled to like many of the characters and/or understand some of their decisions. I didn't feel that the romance between Karolina & Jozef was believable/didn't feel the chemistry.
I find it difficult to review this book as there were some great aspects and I did enjoy reading it, but the lack of character development frustrated me.