Customer Rating: 
Summary: Works great
Comment: After being frustrated for years with Wi-if, err "Fi" and other over the air routers, the simplicity and reliability of this product is amazing.
So easy - just plug and play after some easy first set up. Takes no more than a few minutes including reading the direction. Plus there is no need to set up confusing security that is needed for other solutions that can be hijacked over the air by drive by or your neighbors.
Have found zero speed issues - downloads are as fast as my desktop which is wired to my DSL.
Works great using the Roku streaming movie service (free with subscription to Netflix).
Customer Rating: Summary: It works!!!
Comment: I was very skeptical that this would work, but it works great. You need at least two, One's the master the other you hook to the computer that you want to set up to the internet. I bought two, now I have Five.
Customer Rating: Summary: My Easiest Networking Setup Experience
Comment: I bought a set of Panasonic's powerline network adaptors to get a relatively high speed connection (up to 190 Mbps) to a location that was out of range of my wireless-G network. I could have bought hardware to extend the range of the wireless net, but the price/performance of the Panasonic product made more sense. The plan was to add two Macs and a PC to my network. I've been burned setting up home networks before, so I was skeptical as to how easy this would be.
I decided to start with one of the Macs. Set-up was absolutely easy. It took maybe 15 minutes. The few necessary directions worked exactly as written. Even better, there was nothing to configure on the computer. The job consisted of plugging one unit (the master) into an AC receptacle near my DSL router and running an ethernet cable between the unit and DSL router. The second unit (the slave) gets plugged into a receptacle near the computer you want on the network, and another ethernet cable goes between it and the computer. Amazingly, everything just worked.
To hook up all three computers, I unplugged the ethernet cable from the first Mac and plugged it into a Netgear 4 port dual speed ethernet hub. Then I ran three ethernet cables between the hub and each of the three computers. Once again it just worked.
I've been heavily using this configuration trouble free for about eight months. It's worked so well that last week, when I needed to move one of the Macs to a new location in my house, I bought another Panasonic adapter from Amazon. Adding this new slave adaptor took 10 minutes and, as before, did not require any configuration changes to the Mac.
If I want to expand this set-up further I can add more slave adaptors (up to 15). Obviously you'd need pretty fast Internet service for 15 computers to surf the net simultaneously. In my house my computers aren't all used at the same time, so things are generally pretty fast.
Last, I read some of the other reviews and noticed not all are as glowing as mine. While I found Panasonic's product highly reliable and easy to set up, I can guess what happened to some of these folks. First, while the adaptors are relatively simple devices, they are electrical and are subject to damage, interference and misuse. If the adaptors are damaged it should be fairly obvious because each unit has three colored lights to report various status and error conditions. I'll bet damaged units are pretty rare.
As for misuse, the instructions are clear and contain only a few steps, but must be followed exactly - including running a straight forward speed test that must pass before you plug the ethernet cable into your computer.
Interference is probably the biggest source of problems. Panasonic is quite specific about the potential for this sort of problem.
The adaptors ideally must be plugged into an actual AC receptacle that is not shared by another device that could generate interference, like a power block for a low voltage device (i.e., laptops, printers, speakers, phones - almost everything, these days). Power blocks are really stepdown transformers that produce electric fields that can disrupt powerline network signals. Likewise, you should avoid plugging adaptors into a power strip, which may contain circuitry that can create interference, or may have a power block or two plugged in.
Panasonic sells a high quality, well documented product that has worked well for me. Note that most of the technical points cited above will apply to any powerline networking product from any manufacturer.
Customer Rating: 
Summary: Didn't work at all
Comment: I bought these for a friend who asked me to investigate. I thought if they worked - I would keep them. I purchased a 'pair' and an additional remote unit for my personal environment.
I could NOT make them work unless both parts were powered through the same electrical outlet. I sent them all back and took a hit on return shipping plus a restock charge on the 'single' unit I bought. I ended up buying something else that worked like a dream for my friend and he still has them. For me... I'm still suffering with a bad wireless signal.
I should point out that I have an electrical engineering background, and worked with power-line carriers 30 years ago in one of my first jobs. So - for these things to 'stump' me... they had to be pretty bad.
Customer Rating: Summary: Fantastic product
Comment: For some reason, wireless routers do not work in my home. I've tried several brands and none seem to really work. The Panasonic system does the trick. I can get Internet anywhere in my house now. I was thinking about running wires through the house, but with a couple adapters, there is no need.
