This is not a book I would recommend for anyone who has an e-reader. You really need the book version as you find yourself working forwards and backwards through the novel as you navigate the two points of view and three narratives.
Coetzee forces you into a choice as to how you read this book. That can be difficult for the reader as all three narratives are highly engaging. You want to follow one narrative all the way through but you can not as you need to find stopping points so you can up on the other narratives. If you like reading in nice straight line this will drive you mad but stick with it. There is no right or wrong to read this story just allow yourself to find your own way.
Coetzee is a masterful story teller and he captures three rather distinct voices that resonate with you.