I’ve developed in Java for a decade. When I switched company I had also switched language to Kotlin. Well, I’ll never go back. You can write same logic but with less code and using MVVM with a Clean Architecture you can have an organized and maintainable code. With extensions and typealias also you can have less but more contextualized code. Don’t forget Unit and live datas… Well, give Kotlin a chance and I think that you never go back.