author here, I agree the site content definitely needs some work - it is built with fragmenta itself, but I need some videos of editing, a demo site, things like that, I wasn't quite ready for publicity yet, but it looks like it made it to the golang newsletter...
It is more at the stage where tinkerers and those building sites in golang will be interested, rather than end users. If you have any other comments or criticisms I'd be happy to field them here, I'm genuinely interested, though I know it is hard to judge without a demo of the backend (unless you download the code).
It's intended to be a CMS which eventually rivals something like Wordpress for ease of use/themability etc, but to be significantly easier to extend (more like rails in that sense). I got tired of building the same building blocks again and again in go for clients.
Another site built with this is http://golangnews.com (source available), so it's not just for simple websites, it's also intended for building things which are a little more complex quickly.