Yes - extremely rich metadata combined with robust search features.

For example: "I want to see all..."

- excel files

- that I myself have created (not downloaded)

- anywhere on my hard drive

- tagged with a particular project name

- containing a particular word inside the file

- sorted by "last opened" date

Then ideally you'd be able to save this search/filter/view for future use.

This isn't impossible to accomplish today, but it's so painful and slow that you're basically forced to fall back to folder hierarchies for organization.