After installing the plugin, and activating it I configured the text & settings.
The settings were not being saved.
The plugin when deactivated would not restore website function.
The plugin forced me to delete the website entirely as I could not figure out how to disable it.
Author response
We are sorry for that. But once Coming soon is a plugin, once have been deactivated there is no way to still affects WP website functionality.
If there is any concern please get in touch with support team. By now we never found any ticket related to this problem.