Summary: I wanted to put a security camera above my kitchen cabnets, where I had power but no easy way to run a network cable. I refuse to use WiFi for 24/7 streaming video so this was the obvious alternative.
Summary: These things work surprisingly well! I would have expected as much using them in a house with modern wiring but this house is almost 100 years old, and so is a lot of the wiring. But this does not seem to phase these.
Summary: My application required that the two units be a replacement for a cable. While I measured a considerable drop in performance, it was still quite adequate and eliminated a long cable that was, in this case, in the way. I'd say it was a good buy, and a good choice.
Summary: Pro's 1) setup was very easy 2) speed and reliability have been good thus far Con's 1) the with-outlet version is very bulky to the point that the second socket found in a typical outlet is inaccessible.
Summary: I bought this because I have my home work space set up where the wireless isn't good. Pros: Set up was easy and the connection to my router is now super fast. I get a lot more bandwidth now talking to my home NAS. The bypass is good since it provides one power outlet.
Summary: These work great, however the extra socket version takes up more space than the four-port version and it doesn't fit where I need it. I have an outlet built into a shelving unit near our home theater PC and, unfortunately, the outlet is close to the shelf.
Summary: I bought this adapter to connect my htpc/media server that is in the living room to my laptop that I use in an upstairs office. I do a lot of video production and most of my media is stored downstairs. I tried using wifi to transfer 10gb worth of files and I averaged about 2Mb/s.