If we weren't living in a YA world that went from vampires to... royalty fantasy...? (You know, princes and princesses; and revenge and treason), I would have been way impressed by the plot. However repetitive it may be, I enjoy it, just as I did on the day with the over-use of pale-sexy vampires. With this novel, I was invested throught all the book, it was easy to read and I believe it could expand much more throughout the trilogy. I'm saving the 4 or 5 starts for the next book. 
 I am worried though, with this "royalty fantasy" genre overpopulation, because using the first person; and all the vengance/treason plots, pretty dresses, castles and guards becomes too common. But more importantly, the MCs, the prince and princess, start to become way to similar, too familiar, in this case, this book reminded me way too much to Red Queen. 
 You get the idea. Nonetheless, can't wait for the next.