[karatestomp]

I think part of the actual, non-hyped benefit is that it adds type definitions to incoming and outgoing fields on the client side. Working directly with JSON is kind of fucking awful. Attempts to fix it are often of an even more unpleasant "now you have two problems" sort (JSON-Schema, for example). Any well-supported standard for typing interfaces for data sent to the browser & other REST-consuming clients, even if the underlying transport remains JSON or whatever, is welcome.