Hey Rocky, thanks for the review!
Just a note that you can actually set all of the settings within the plugin's settings pages, the only time you would need to use the shortcode options is if you're displaying more than one feed and need to define different settings for each. The plugin's Settings and Customize pages contain all of the same settings as the shortcode options and so you can just define options on those pages and then use the [custom-facebook-feed] shortcode to display your feed with those options applied. If you're having any trouble doing this then just let me know and I'd be happy to help!
Thanks again!
John