A very simple, quick, free online CMS. Useful if you have a small church site with, say, under 20 pages or if you aren't ready for a more powerful CMS like Drupal or Joomla. Easy to set up, make portions of pages editable by adding a CSS class.
This CMS is easy to set up (set up FTP access and then just add class="cushycms" to any element you want to become editable). It's perfect for a small church website, and easy for church secretaries or non-web-dev people to update web pages.
It's also great that there's no special export needed, it's just the HTML on your web server.
Having two permission levels--"Designer" and "Content Editor"--makes it easy to control access.
My one gripe--there's no way for a Designer to transfer ownership of a site. But, since setup is pretty easy, that's not a big deal at all.