I liked this book quite a lot.
Adelina, Raffaele, Violetta and Enzo are all great characters. Though the story is set hundreds of years ago, it still felt very modern at the same time.
It helped that this story was very exciting. It had tons and tons of build-up. Plus it had huge doses of action scenes, you could easily picture this like a movie in your mind. The wicked descriptive writing really lets your mind go loose and envision everything easily.
Imagine X-men, but cooler!
My first time reading from Marie Lu's books and it won't be the last!