It might take a while (upwards of 30 seconds) to load works. Sometimes it is instant, sometimes queries take longer. However, the viewer is very stable. If you wait long enough, it should almost always load eventually. And if it doesn't, it'll tell you that something happened.
The library I use for this does NOT pick up certain formatting that most stories use!! This means, mostly, that paragraph breaks are lost. I'm seeing what I can do about this.