Having full root-level access means that you can access and customize each file on a selected server, in addition to all system files, and to change system settings or set up server-side software which may be needed by specific scripts and even offline apps in order to function efficiently. A server is accessed at the root level with a root user, who has full privileges to perform all the abovementioned things. Your root user can also generate various other users. For safety reasons, you are advised to have another account for everyday tasks and to use the root account only if you actually need to perform a particular task on your server. The root-level access feature gives you full control over your server from any location, given that you know the user credentials.