[javert]

> I'm picking up a lot of subtle things that make the whole experience more interesting.

That's a common experience. It's like some people are reading the books in low resolution. That's why they think the characters are simplistic. If you re-read, you start realizing that all the little details matter and are part of the story.

> Moreover, her take on female sexuality must have been revolutionaire at the time

It was. What other work of art published in the 1950s or earlier has a female protagonist, a businesswoman, with multiple lovers?