The NETGEAR Powerline kit is pretty much like all the others. The utility is a little snazzier and the adapters are nicer looking. But in the end they are about as good as any other 200Mbps adapters out. They are, in general, much better suited to HD video streaming than wireless, but are not that great for normal data transfer.
Still, the NETGEAR XAVB2001 kit is a nice addition to any home that either has a "dead" area for wireless coverage or that wants to reliably stream HD content to their systems. At only $119 from Newegg.com it is not a bad deal at all. This is especially in light of the increased amount of traffic (audio and video) in your typical home network.