It's unlike any other UI Framework I've used and at first I didn't like it. If you approach SwiftUI without doing things the way the framework expects you too it's going to be frustrating. Once I learned how SwiftUI wanted me to think about the UI I found it pleasant to use. The documentation has improved a lot too (as have the third party tutorials), although there are still some suprises that I've encountered.

There is at least one important feature that is missing that many desktop apps need so I can't unreservedly recommend it for that yet, but for mobile development it is very nice. I am much more productive with SwiftUI than anything else.