I tried powerline networking for a while, but got so frustrated with the hardware (it disconnected randomly after a few days or weeks and failed to reconnect automatically - all the while hogging the WiFi although it didn't have an Internet connection via powerline, so all connected devices were offline) that I eventually gave up and now just use a WiFi repeater. Of course, that might also depend on the manufacturer? I would say the best alternative is to try it and just send the hardware back if it doesn't work (reliably)?