Not what I needed, but good plugin, and good support

This plugin uses the default WP Cron system which has limitations. Those limitations prevented it from being the magic cron plugin I need for specific tasks, but the plugin author has documented those issues, provided alternative solutions, and responded to the support topic very quickly even though it wasn’t a problem with the plugin itself.

The plugin may not have fit my needs, but it is a solid plugin with good support, and those are the primary rating factors for me to determine a good/bad plugins.