I must confess I knew absolutely nothing about Emma Hamilton (other than that she existed) before starting this book, so I cannot compare it in terms of depth or accuracy to any other accounts of her life. All I can say is that it is a fascinating page-turner and a shocking reminder of the total lack of status of women at that time.
A major snag with the Kindle edition is that there are no illustrations - even though there is a list of illustrations in the contents at the front - and this made me feel cheated. The story stands by itself without the illustrations but nowhere in the description of the Kindle edition does it say that you won't be getting the pictures. So beware if you are getting the Kindle version.