I felt like I had been neglecting science fiction, so I went hunting around last weekend. There's a book of some of the early Hugo-winning short fiction, and first up there was The Darfsteller, by Walter M. Miller, Jr. Well, I went looking for alternate copies of that novella and everywhere I looked the covers recommended Miller's classic novel, A Canticle for Leibowitz. Sometimes loudly. I figured I'd check it out.
I've heard of it but I had never read it until a few days ago!
What I found was a very solid book, with excellent worldbuilding, and with very good tone, characters, ideas, and perspectives. But the "very good" elements each fell slightly short of excellence for a specific reason, but more on that below.