How is this a plugin?!
The developer needs to read up on WordPress exactly what a plugin is.
Developer thinks: Create "Plugin" = Permission to Blatantly upsell you other services.
Plugin should also offer some core value (for example: at least perform a certain function on your website) & not have to go off site, and then anyway leave you high and dry after a certain period of time.
This is not so much a Plugin more an attempt to sell their other products.
Who are these people giving 5 stars? Friends of the developer perhaps...