I'd love to explore this further, as it looks like you've put a ton into it, but the simple difference in external documentation being there for bolton makes it much more attractive to me.
Does look like you docstring your functions--can't you autogenerate a docs site?
Edit: I do see the docs site, but it's a pretty sharp subset of the modules. The topical guides are nice, but I really prefer web-accessible basic docs too, so skipping those in favor of topical only isn't awesome from my POV.