I have to admit, it's been so many years since I read it that I can't 100% say it is. I remember really liking it, but you know how it is, you read a book in your twenties and you think it's great. Then you read it again now and it's not so great. But considering how good a writer she was, I'm inclined to think that it was a good book, then and now, even if not to the Stephen Pressfield level. :-)