This plugin vs. Lodgify Website Builder

We have a website up with Lodgify, a subdomain with lodgify.com. I have a website up to fit in with our Lodgify web site. The Lodgify webiste builder pretty much has all of the features described about this plugin. This leaves me wondering just how I could use this plugin. The one reason I can think of is so that I would be able to use, for example, Yoast SEO–a WordPress plugin. I assume that If I use this plugin, somewhere in the plugin settings, I would need to enter my Lodgify login credentials. I just wonder just what exactly I could do–and not simply duplicate the functions that Lodgify already has with their Website Builder.