The first thing you should know about these powerline adaptors is that they are only capable of sending 100mbps through the Ethernet port, not 500mbps as advertised and printed on the box, this is very misleading. What this actually means is the total amount of bandwidth possible if you had 5 or more adaptors plugged into your network would be 500mbps combined.
The first pair were faulty and returned for exchange.
The second pair seem to be working fine, although disappointed having much lower speeds than expected and because they are used to connect the upstairs router port to a gigabit switch in the lounge they create a bottleneck, although they replaced a pair of old netgear 54mbps powerline adaptors that we're not much slower although quite inefficient.
What drawn me to these adaptors was the assumed bandwidth power, connected to a gigabit switch downstairs sounded ideal.
The compact design is excellent, they are great looking and appear to be well made.
The security and software is a plus point (note: software is clunky and probably confusing to some)
The efficient power saving features, although apparently buggy, to be confirmed.
They were on special offer at the time.
If you are happy with the lower speed and they are priced less than £20 it's a yes, but if you are looking for super fast these are not not for you.
Three stars for the misleading advertising on the packaging, if they were advertised as 100mbps each then I would still buy them and give 4 stars.