Summary: This is a kit that consists of an Ethernet-powerline adapter and a powerline Wireless N access point (the AP also has 1 Ethernet port). The AP is acts as a repeater: it extends your existing network, so you need to already have a router set up (the AP does not do NAT or DHCP). The one-button setup feature did not work for me. Once I set the passphrase using the Cisco software, everything is working great. The only complaint is that the software is Windows/Mac only.
Pros: Works as described, extends existing network