Pros: Plug and Play ... I know from having worked with powerline products in a support capacity that there are many variables which affect performance. Noise generated by devices plugged into sockets on the same circuit, crossing circuit breakers from one room to the next, etc. I plugged in the first unit, went upstairs and plugged in the second. They saw each other right away and made a solid connection. Added two more for other devices, having tested one yet, but so far all works as it should. These are particularly great with a) the plug to plug something into them and b) noise filtering so that you can even use a power strip plugged into them. This is usually not the case. Normally, you can't have another device in the same outlet, let alone a power strip as they are notorious for generating noise. Most people do not realize that the quality/age/spec of your home wiring will have a significant impact on signal.

Cons: Only getting 100mps without using encryption, but I know that that is most likely a factor of the wiring and not the device itself. We have wiring from the early 60's and it really isn't what it should be. Given the wiring issues, I am quite pleased with connection rate and reliability.

Overall Review: Don't blame the device ... If you get poor/weak connection, try adding another device to the line somewhere between origin and destination. The more of these you have running, the better connection they all see. To do a test of the device, isolate one circuit in your house and temporarily remove any/all things plugged in you can, particularly power strips. Then plug in two of these on the same circuit. Do they see each other? Can you now use ethernet? If so, problems experience are almost certainly your household wiring, crossing circuit breakers (thus testing on the same circuit) and/or devices plugged in which are generating noise/interference. Note: You CANNOT run these plugged into a power strip. Not only do many power strips generate noise, but most will also interfere with the signal passing through them to the wiring.