I've used the Turbo version for a couple of years. I've got three connected, one for the PC, one for a router and one for a network storage drive.
Plug them in, switch them on and they work, simple as that. They do have built in encryption if you wish but I've proven in my previous house that I couldn't see the signal at my neighbours house so it appears to stop at the consumer unit.
They connect to each other at a steady 78Mbps and have never failed me.
I ordered from Solwise, these are the ones I have -
http://www.solwise.co.uk/net-powerline-pl-85pe.htm
Awol