I love, love the set up and will absolutely read the full-length novel if/when it appears. The bits with "Dark Justice" were especially inspired. In general, when the story consisted of action or dialogue it was terrific--full of energy and wit--but there were several clunky info-dumps that ground things to a halt. I can't help but hope they will be revamped in revisions.
Despite my complaints, I highly recommend this as a clever, original take on the superhero tale.