I'm surprised that Assent doesn't have a forum for developers. I have looked around, though, and I can't find anything. Every once in a while there are a few people on ET that mention that Assent has an API, or that they have worked with it, but nothing technical at all.
My biggest issue is that by following the examples you can figure out how to make the API work but it's hard to figure out why you need to do things as shown in the example, because the logic behind it is not spelled out.
Having input from a community of developers would definitely be helpful -- so many questions could easily be answered saving a lot of trial and error.
I have heard that they're working on a documentation package, and that should help a lot.