Readable

Concurrent code in Kotlin is as readable as sequential code. One of the many problems with concurrency in other languages like Java is that often it's difficult to read, understand, and/or debug concurrent code. Kotlin's approach allows for idiomatic concurrent code:

suspend fun getProfile(id: Int) {
    val basicUserInfo = asyncGetUserInfo(id) 
    val contactInfo = asyncGetContactInfo(id)

    createProfile(basicUserInfo.await(), contactInfo.await())
}

This suspend method calls two methods that will be executed in background threads and waits for their completion before processing the information. Reading and debugging this code is as simple as it would be for sequential code.