This product works straight out of the box and allows you to extend your network across the mains power line. Prior to this I was using the TP link 200MB version of the product and I''ve seen a 50% increase in speed, going from 20 to 30 Mb using internet speed test and the wired connection, however this isn''t as obvious as you would expect when browsing the net, it''s still a plus if you are streaming movies and the like, something which we do a lot in this house. We had no problems at all with install, refreshingly. The units themselves are solid and well finished but noticeably larger (deeper) than the units without AC pass through, so if this feature doesn''t interest you perhaps these won''t be the ones for you. In several months use these have been 100% reliable, they are well made units which don''t over heat. I would recommend them, TP link being a good brand in my opinion.