I'm using the Apple Airport Extreme (simply because I had one already) and just set it to use PPPoE and entered the BT user name and password (Wan side). The Lan side was already set up for my network.
The Openreach engineers set up the Homehub 3 but as soon as they were out the door I swapped back to the AAE.
BT -> Zen -> F2S -> Bulldog -> Be* -> BT Infinity
Far too many computers, 1 Wife, 3 Maine Coons and too many horses