Summary: Even with the pass-through port, the large casing still obstructs one plug on a standard USA household outlet. After plugging this into the lower plug, I couldn't get another three-prong plug into the top outlet. The top plug can now only be used for a small two-prong plug appliance like a lamp, clock, or radio. Setup was also made extremely difficult by the horrible instructions provided. I finally got it working after about 2 hours' worth of trial and error.
Summary: Based on other positive reviews, I have no reason to believe that the Powerline Adapters will not work as advertised. Unfortunately for me, the room my router is in and the room in which I wanted a connection are on two different electrical circuits. This may be a no brainer, but the adapters apparently will not work across circuits.
Summary: Original title: DO NOT GET another router or wireless extender. GET THIS! So, I had tried three different routers (ranging in price from $50-$200, TP-Link, Belkin, Netgear). While all of them delivered my ISP's promised 50MB/S internet speed when I was within 10 feet of the router, the signal dropped to about 40 MB/S 20 feet away, and to 15MB/S ANYWHERE on the second floor. It was terrible.
pointless pass-through and a caveat for sophisticated Mac OS X users
26 March 2012
Summary: 1. The pass-through wall plug is pointless because the additional size required for the unit makes it block the second outlet of a wall plate, so that by taking up two sockets and giving you one back, you might as well save your money and just purchase the basic adapter which only occupies one socket. 2. The power saving mode is problematic. This adapter offers a power saving mode that basically shuts off the device when no activity is sensed over its ethernet port.