Lovely, lovely read. Hero to die for and a delightful heroine who grows from a carefree, careless hoyden into a much wiser woman over the course of the story. Yes, the villain is pretty obvious fairly soon into the story, but the author had the sense to grant some intelligence to her characters, who also figure out what's going on well before the end of the book. However, they still have to deal with the problem, so the remainder of the book revolves around that (and the romance itself, of course).
I've noted before that Jo Beverley loves the Georgian period and it really seems to suit her talent better than the more popular Regency. The descriptions of the clothes for both sexes and the houses and parties are just scrumptious in this book.