Pretty early in the book (Just finished Ch 16 of Book 1), there's excellent characterisation of the societal norms, but the story drags, things hardly happen, and Fanny is so uninteresting and prudish.
On one hand, it's very refreshing to see, but on the other, it's hard being invested in a meek character who hardly speaks up and lets everyone walk all over them. I'm hoping Fanny eventually gains some semblance of confidence.