It provides a system tray icon in the notification area from which a non privileged user can establish and bring down L2TP over IPsec VPN connections.
There is also a 'Edit connections' menu item. In order to bring up the editor dialog, a non privileged user must authenticate as root.
From there the user can add, remove and edit vpn connections.
Editing allows configuring various options for IPsec, L2TP and PPP.