Why do you love edn? Specifically I also like edn, but I always felt like my use of it was glorified json.

I did like integrant, at least I felt like I understood it, unlike component.

There were two things about edn that made it seem better than json to me, tagged elements (and readers), and symbols. I don't remember exactly my use case but I used symbols in edn to something like namespace-resolution for multimethods. It was something like including a file in a classpath or loading a file, dev vs prod kind of config.