John's response highlights the advantages of using Kotlin for Android development, particularly its null safety features, data classes, and scope functions. He provides a good explanation of how Kotlin's features contribute to cleaner and more maintainable code. However, his response could be improved by providing specific examples of how he has used these features to enhance application functionality. Additionally, he could mention his experience with Java and how he transitioned to Kotlin, as well as any challenges faced during this transition, to provide a more comprehensive answer as seen in the benchmark response.