Covers a broad range of topics that a solution architect should be interested in, but without going deeply. This OK, otherwise the book will be too huge.
You will notice that the author promotes microservices and migration to cloud, typically to aws, in every possible situation, this maybe biased somehow; monoliths and on-premises solutions are good enough for most of the cases, especially when we are talking about enterprises that can afford having a data enter.
I started reading the book to give me the sense about different topics I should be aware of as a solutions architect, and I turned out that the book can - to some extend - bridge the gap between thinking within on-premise solutions and their alternative cloud offerings, which is fine for me as well.