Ok
Works without a hitch. Two sockets installed, no need for the cable/satellite module. Correct construction and good cable length. The socket is quite massive (according to the advertised dimensions) but seems solid. The on/off button is ok, to be seen in time (I use it to turn off some appliances without a switch connected to it).
Note that the installation of PLC modules on both sides (each on an identical power strip) works, but that the speed is reduced (ceiling at about 10Mbps, at home 20Mbps without the power strips).