I was curious. I had to read it for myself. You may have to do the same, but this novel is not very good. It shares the setting and the tone of "A Canticle for Leibowitz" but it lacks cohesion, tells a rather pointless story, doesn't contribute much food for thought, and has a bewildering array of shallow characters that drift into and out of the story and serve very little purpose other than to confuse the reader. I prayed for an editor, because this book reads like the the author's notes about a novel.
Those looking for a "sequel" to A CANTICLE FOR LEIBOWITZ will be disappointed. This is a quite different sort of book, in a different style, written from a different sort of viewpoint.
Looking forward to reading 'Saint Leibowitz...', I enjoyed re-reading 'A Canticle For Leibowitz' stopping at the point where SLATWHW storyline picks up the story only to experience a major letdown with Miller's second book. In a word I found it B*O*R*I*N*G. Excrutiatingly so. I would have to agree with what I read in various reviews found elsewhere that there was a good reason it went unpublished for so long. SLATWHW might be of interest to students of fictional social anthropology but it sure seemed like a 434 page trip that ended up going nowhere, failing to advance the storyline of the original novel one bit. (It was a relief to finally close SLATWHW and get back to reading the final section of ACFL)