Jane Austen is interested in personal relationships, what actually this or that person is like. Her characters are complicated and their inner world is revealing gradually. The author doesn’t intend to confuse her readers but is willing to show that even though we feel we know people well their behavior can be quite unexpected in some situations.
I don’t think that “Emma” will be thrilling for teenagers (especially boys) – there aren’t any action or fantastic scenes, but those who are interested in people’s feelings and emotions, the history of England in the 19-th century will be delighted.