Our front and back-end demos are available through which you can see how the Magento 2 Membership Subscription Extension works.
Read this guide on How to Install and Configure Membership Subscription to Magento 2 to create and manage unlimited membership packages using this extension.
Here are the few more resource to help you get most out of this Magento 2 Membership Subscription Extension.
How to Create Membership Subscription Plan in Magento 2 Store
A Guide to Membership Subscriptions & Recurring Payments for Magento 2
How Membership Subscription Extension for Magento 2 Works
An Ultimate Guide to Boost Customer Engagement by Membership Subscription