I think if you liked the original book the tone of this book would compliment it. I personally didn't enjoy this book but then again I didn't care for Mansfield.
From the back cover "Some of them belonged to the elegance and intrigue of Mansfield Park...others could not stay away. Inspired by Jane Austen's beloved masterpiece Mansfield Park, Joan Aiken has written a brilliant novel of love and manners, status and social sham, and the gentle scheming of unforgettable characters." "Like everything Joan Aiken writes, very enjoyable indeed" Cleveland Plain Dealer.