I have the same experience. Once you do more with Scala than "better Java" it is easy to create a mess full of "try to be clever" code you will regret a year la

I have the same experience. Once you do more with Scala than "better Java" it is easy to create a mess full of "try to be clever" code you will regret a year later. It is really hard to become a good Scala programmer, but it is not hard to become a good Kotlin programmer. All the little things that make Scala theoretically better are not worth the learning effort. In Kotlin you get 80 % for 20 % of the effort. Scala is separated in subcultures. Some developers use it as "Haskell for the JVM" and other as a "better Java", or something between. That makes hiring and picking up existing projects hard. Tooling is another weakness of Scala. Scala IDE (Eclipse) is more or less dead. IntelliJ with the Scala plug-in is ok, but the Kotlin support is much better.