I started in April 2012 by Netgear XAVB1601 (200 Mbps) which mavaient disappointed to realize later that the real problem was the electricity grid and that these plugs although not by making the service jattendais were very good.
Jai then tried in May of TP-Link TL-PA4015P (500 Mbps) whose features were far behind (compared to Netgear) and above were dropping too frequently (loss of communication or dappairage never sétait produced with Netgear ).
Jai finally set up in early Netgear XAVB5401 these and I have found the quality of the first with the performance of the latter.
My electric network is still bad, I will say that this is in the problems lon judge the quality of a product. In addition the software "Netgear Genie" downloadable from the website is awesome Netgear (Netgear to have the condition on its network).
