It took me a long time to get into this. Though I found the initial pages interesting, soon it became tough slogging. But once Tarwater and Rayber meet things really pickup. There is a sort of majesty to this part of the book and the subsequent part. It is really impressive and admirable how O'Connor tells her protagonist's story and doesn't worry about the stories of those we the reader might want to follow. Tarwater's transformation is powerful and incredible and makes the novel worth reading. However, I am not sure this is one of the great novels of the twentieth century. The effort the reader must put in to get to the payoff is a little much and I'm not sure there's enough of a hint of what's coming in the opening segments to convince most people to stick with it. You should, but it's tough getting there.