Your link is asking for a login to open. I was curious to see what kind of json you were trying to parse.
I’ve only used the object once with the set json action and get expression. The path is roughly the same as accessing values in JavaScript. Had to reference the docs to figure that one out.
Anyways json maps directly to JavaScript data. The json object is just an alternate way to access things.
I haven’t dealt with how you loop over arrays or keys yet so I can’t comment on how straightforward that is.