This looks very interesting -- I don't love the web development story in Clojure/ClojureScript right now, so I'm excited for anything that makes it easier. And I get that this is an alpha.
That said, one of my biggest pain points with Clojure is poorly documented libraries. This NEEDS a high-level description of what is provided and where, and the example app needs a lot more documentation so I can figure out what it's doing.
EDIT: Whoops, I found the link to the full documentation:
http://pedestal.io/documentation/
Much better. I still wish the sample chat app had more documentation, but if I have time I'll try to contribute that myself.