I don’t know for sure but it felt like this book had a bit of “first book syndrome” going on. I felt lukewarm towards it at the beginning and honestly, I skimmed a bit when she was describing rooms. The inner dialogue of the Beast took some getting used to as well.
I did enjoy the characters and I liked Jane. The last quarter of the book really took off and I couldn't put it down until after the epilogue. I liked all the nicknames too, Bruiser and Troll especially. I liked Leo and I really hope the twins make another appearance in a later book.