It’s been on my radar almost since it was released,   and have even filed at least one issue. Sadly though I haven’t yet had time to play with it. I also suspect it would be more interesting to use in conjunction with friends who are also using it.
While it looks like it’s got some interesting functionality, it is too WordPress specific for my taste; I’d prefer a more IndieWeb-centric approach, so I’m waiting for the release of Yarns and some other microsub-related work, which should be coming along any minute.
Have you played with it? Thoughts?