Not sure who the target audience of this is… if you have any experience building apps, done some reading on SwiftUI and tried the tutorials on Apple's site, this all is a bit too primitive. Was expecting something more in-depth.
Lightweight. One of these monkey-see monkey-do books that say: "type in this code; then type in this code". Or else "load this code". Nothing is explained. You'll probably learn to use basic SwiftUI, but if you don't know what an @State property wrapper is, you won't learn it either. I'd have to say I expected more. I read their Metal book and it was more substantial.
More like a 3.5, but GoodReads doesn't allow for float rating. ¯\_(ツ)_/¯
Great book, I did learn some interesting new tricks. It provides a great summary and key takeaways of a framework that is still in its infancy... I would recommend it.