Hmm …

… Pretentious, impenetrable, hard work ... better? Why we need difficult books | Books | The Guardian. (Hat tip, Dave Lull.)

Well, I agree that a book can be difficult and still worth reading. But it doesn't follow from that difficulty makes a book worth reading. Since this piece doesn't provide any detailed information about about Burns's, it is impossible to say whether the difficulty of her novel works or not.