With this extension the site's staff will be able to edit/add users directly from your site's frontend, without having to login the Joomla backend.
With DM Frontend User Manager you can set custom group rules from the backend admin to set wich group can see, edit, delete or add users from other groups. For example you can set a "Moderator" group that have the same Joomla permissions as the "Registered" group but it can edit any user from any group using the DM Frontend User Manager view.
Finally an extensions that allows any selected user groups that don't have backend access to be allowed to add, edit, view and also delete users from front end.
Only bad thing is that it's really missing a good documentation to see how it works and looks like for being a paid version!
You didn't actually know what you got until you actually bought it.
So because of that it gets 4 star. Other wise the product itself is 5 star worth :)