I think one feature of Kotlin that is underestimated is extension functions. Combine them with autocompletion and you've got a great developer experience. Findi

I think one feature of Kotlin that is underestimated is extension functions. Combine them with autocompletion and you've got a great developer experience. Finding the method you need no longer requires a Google, and optimisation pays off massively in terms of productivity by tightening the development loop.