Just finished Wool--the omnibus edition. Fantastic stuff. Part of the fun is the journey you take with the protagonists in trying to learn exactly what their world is all about, why certain things are taboo (e.g., speaking of the outside), and why certain things they've taken for granted might carry a different meaning if the world doesn't work the way they've been taught (e.g., the price of cables/texts vs. the use of porters). The final segment seemed a bit unfocused and ad hoc to me. But, overall, great storytelling.
Glad you enjoyed Wool! I have the next three books in the silo series, 1st, 2nd & 3rd shift, but I haven't gotten around to reading them yet. And now I see there is a new silo book, called Dust, due in August. Also, I just noticed a bunch of Kindle singles by different authors written in the silo universe. I have a lot of catching up to do.
Just finished the third in the Expanse series, Abaddon's Gate by James S.A. Corey. An excellent trilogy that takes place(mostly) in the outer solar system. Lots of great characters & action. Good old fashioned space opera sci fi.