There are people who are deeply offended by this concept: a mash-up of a beloved classic with monsters. I am not one of those people. Quite the contrary, I have never read Pride and Prejudice and never intend to. The movies are about as close as I get to classic literature.
Jane Austen? Boring. Jane Austen plus zombies? Hilarious and action-packed! Also, very commercially successful – a new genre has been spawned.