This book was a bit of a disappointment. First off, I do not like books with characters who are supposed to be sympathetically committing adultery. There were options even back in the early 1960s. Outlander is my exception because it was either marriage or torture and her husband was 200 years from being born. But, I digress.
With that bad taste in my mouth, I just couldn't enjoy the book. I'm sure others can look beyond this, but for me it colored the rest of the book for me.