I really appreciate how this tackles the "key repetition" overhead in standard JSON without forcing a jump all the way to a binary format like Protobuf or MessagePack. It feels like a pragmatic sweet spot for high-volume data—especially in mobile or IoT contexts—where you want to optimize for bandwidth but still need the payload to be easily parsable and somewhat human-readable. It’s a clever way to bridge the gap between developer ergonomics and transfer efficiency.