This plugin provides the best customizability among other major event plugins such as Events Manager, The Event Calendar, and All-in-One Event Calendar. The more you know WP, the more you can enjoy the plugin.
Otoh, there's theme incompatibility. For example, Volt Magazine theme and the plugin don't work nice each other. Theme customization was required, but volt magazine template was a bit complex.
If you want to customize, this is the best.
If you just want to enable event calendars, use others.