Two things would be nice to have:
1) The URL of the folder was being displayed with the shortcode. I wanted to keep a link so I made it a have the display text of ‘View Google Drive Folder’ rather than just the URL.
2) Listing the CSS selectors or having control over the table output in the settings would also make it much easier to integrate into the design of a site.
I’m set now, but these we’re items I had to adjust to use this plugin.