Simple to use but clumpy looking

3 Stars because the visual aspect of the FAQ layout on a page is clunky and not overly attractive.

You can use the categories by modifying the shortcode to:
[faq categoryslug]

Like everyone else said, there’s a distinct lack of basic instructions for this plugin.

You can also remove the notice for the pro version by deleting everything below
/* Display a notice that can be dismissed */
under Plugins > Select ‘Edit’ for WP Awesome FAQ and scroll to the bottom of the index.php.