It was a case of the preface being more interesting than the novel itself.
The preface described the life of the author Jean Rhys and explained that she invented a life for the Rochester's mad wife, the woman locked in the attic in Jane Eyre. What a concept! Loved it. But the novel itself ... I didn't find believable. Stuff happened that had no logical cause and made no sense to me.
Yet the book is very highly thought of.
So there you go. What do I know?
Only what I like and don't like.
Only what inspires and thrills me, and what doesn't.
Only what satisfies me, and what doesn't.