Super restricted entries is created to allow admin to restrict members or member groups to access entries. You can select whom you want to allow to see the entry in create/edit entries page.
You can either allow specific members or member groups to access entries or leave that settings empty to allow everyone to access that entry. There is frontend tags to check access entry wise. You can also pass a parameter in exp:channel:entries loop to rid all entries from list that user not have access to view.
There is 3 fields in addon's general settings:
Once Installed, This addon will publish few fields in new Tab of channel entry form. You can define entry settings there to mark this entry restricted.