First the warning: skip the introduction. It’s like a bad movie trailer that spoils half of the movie. You’ll be better served reading it as an afterward; it has points that work and reinforce the story.

On the good side: it is well written and easy to read even today. It doesn’t have lots of fluff or strange terminology— and it doesn’t bog down like many victorian novels. It’s solid and direct. She does address the reader directly and makes asides about the then current state of laws, but it works.