Are there any features sonar provides which you currently miss for Kotlin?

Frankly, I haven't used Sonar a lot really, because it is hard to configure and to keep up with. I much rather reside to single tools like Detekt, PMD, Android Lint, ... to do its job, because the configuration is transparent and checked into the SCM and "evolves" together with the rest of the code. Plus, I don't have any headaches running all the checks quickly on a local machine without internet connection.