I picked this up at a local bookstore. I've enjoyed Robin Hood literature in the past, and thought I would give Elsa Watson's book a try. Though it's easy to read, I am disappointed that the author doesn't take more liberties with the story. The characters are mostly flat, even Robin Hood.
Watson, through Marian, informs the readers of what they are to understand about the characters, rather than to let the characters' actions speak for themselves, and more often than not, the author's idea for the plot seems to define the characters and drive their (sometimes jarringly uncharacteristic) actions rather than the other way around.
If you're in the mood for a tale of Sherwood Forest, I would find another. If you're particularly interested in Marian's perspective, I would recommend Lady of the Forest by Jennifer Roberson. You'll find more interesting adventures and more developed characters, and (as I recall) far less character navel-gazing.