Your library looks pretty neat, but I have an aversion to boost too. I love that c++ is slowly absorbing the best bits so I can detach myself from it -- it's a great library but is just so monolithic. And whenever I need a non-header-only library from it I always seem to struggle through the windows b2/bjam/whatever process to build them.

Minor: there are a few mistakes on the landing page: 'welcome', 'implementation', etc.