As much as I'm excited about the new Databases component in Confluence, I'm concerned that it will go the way of Team Calendars, i.e., that we'll eventually be forced to replace and restructure our pages when Page Properties is deprecated and charged extra for its use.
I'm putting this out there because in my experience Atlassian development priorities don't lean very strongly toward fixing any bugs with Page Properties - especially the Reporting structure - so I'd love to be wrong about the basis of my anxiety.