This book is worth reading. It will appeal to adult engineers and others. It is a more adult form of SF than his earlier books. There is of course a plot and various cute ideas, but they are not the core of the book. This book is about the lives of some adults, and secondarily about the other aspects of plot and the images of a similar but different society. It could have been one of the common "how would society be different if ...." Instead, this is about some adults. They have ideas, make mistakes, learn some things, don't learn others, change in some ways, don't change in others.
I found it very interesting to follow the characters evolve, the society change, and watch how other aspects of humanity remained the same. The tech is OK. There are plenty of inside jokes and allusions; and I'm sure that I missed a great many. I caught some of those relating to silicon valley players and locations. I'm sure I missed others related to Disney and elsewhere. These can be entertaining as you catch them.
I did read the whole thing in one burst, which meant dinner was late today. That indicates that the story and characters are sufficiently gripping that I preferred to keep reading rather than cook dinner.