If it's paid, premium, it's got to be better, right?
No, but that mean almost everyone can use it, on almost any platform. When Redis-object cache require a redis-server installed and a PECL extension for better performance.
But --wpredis is not a full page caching, you will not find any
define('WP_CACHE', true); in your wp-config.php
http/2 is already available with EE