Jane Eyre has it all. It's really a perfect book. There is pain, suffering, injustice, happiness, comeuppance, romance, betrayal, insanity, compromise, social pressure, and domestic bliss all in one book. Not only that, it's all wrapped up in bildungsroman (a story which follows a character from childhood to adulthood) so you come to feel that you really know and understand Jane and her motivations.
If you enjoy fiction. If you enjoy the art of words being put together to form greater meaning. If you are capable of reading and understanding, I recommend this book to you.