Overall, I found this book to be an interesting quaint book, with an unique perspective of Jane as it is told through her sister Cassandra's point of view. It's a quick read. While I was sick with the flu last week, I zipped through it. I enjoyed the book and was glad that it didn't take too many liberties with Jane's life story.
With that said, I didn't really like the personification of Jane in this book. She comes across as a selfish brat much of the time. She didn't always treat Cassandra very nicely and they often had a strained relationship. Cassandra herself wasn't that interesting, only as a conduit to Jane.
Overall, okay, but not great. I'd recommend the Jane Austen mysteries by Stephanie Barron for those that would like to read fictionalized stories about Jane Austen. They are highly entertaining.