This was truly not very well-written, well-paced, nor well-established, but I still thoroughly enjoyed it. I highly recommend this to any fans of both reading and Jane the Virgin, but I think that without my love for the show, I would not have enjoyed this.
There were definitely multiple historical inaccuracies for a book set in the year 1900, and the characterisation and the pacing and the explanations of things were quite messy. While again, I enjoyed the drama of this book, I think this story was told far far better in the first season Jane the Virgin and this in no way lessens my adoration for the show.
I would 100% still read any other book published as a 'Jane Villanueva' novel, but this wasn't that great just as a book, hence the average rating.
I had fun though!