Nice product. It would be a very good point if you could handle categories and tags. I have tried to fix this lack in Jekyll by building my own stuff for a side project http://www.magazineduwebdesign.com/. You can check the sources of the app here https://github.com/MagazineduWebdesign/MagazineduWebdesign.g....

You have a nice roadmap :-)

A lot of potential here but the pricing is really strange, $35 per month?!

Nice... but so expensive!