So what happened when I finally got around to listening to it? I bought Shift and Dust and listened to them. My son asked if we could purchase the e-book of Wool after I told him about it, and I realized I already had the Kindle version. One of my many Kindle devices is now on permanent loan to my son (who reads way faster than I ever did).
It is difficult to talk about the story without cramming it with spoilers. It may suffice to say I quickly became as curious about the outside world as the more troublesome characters. If I had been living in the Silo, I’d surely have been sent to Clean (a death sentence).
The first story in the omnibus, Holston, had me from the start and the ending kicked me in the guts and caused me to keep reading. Book two, Proper Gauge, was slower paced but probably delved deeper into the primary character, Mayor Jahns, than most other parts of the entire series; the exception possibly being Donald and Juliette. Book three, Casting Off, is about Juliette becoming sheriff. While I enjoyed it, I wondered why all the trouble for her to be sheriff, given the brevity of her term.
Book four, the Unravelling, blurs with book three and five in my memories, since I listened straight through the omnibus with as few breaks as possible. The final part of the Wool collection, The Stranded, really raises the stakes.
All in all, I am very impressed with the Silo series. Hugh Howey is not only a successful indie author, but a credit to the breed.