•First - convenience. Just as with wireless this technology allows to bring network connectivity without additional wiring. Your powerline is accessible from every power socket in your house, that simple!
•Second - security. The signal is limited only to your house wiring and is not accessible to the outside world. Plus, you can still encrypt traffic for even further security.
•Third - bandwidth. Wireless is still under performing in delivering large amount of data fast. Even N-draft can be not enough to move a high resolution movie across the network. In addition, wireless is influenced by interference and signal with speed suffers.
•Forth - simplicity. PowerLine is even easier to configure than wireless. Also, it works with any Ethernet equipment - old or new.