I'm using a TP-LINK - TL-PA7027P KIT and I have a Telekom 1000 mbps internet connection in Hungary, and it usually provide 900+ mbps download speed with a direct ethernet cabel between the modem and the PC.
When i plugged in and tested the powerline adapters, the download speed was 35~ mbps.
I updated the firmware version, but nothing changed...
Some screenshot from the utility:
And the connection: