This has been an interesting thread to read. :-)
I requested an upgrade to VDSL this week, and was sent a HG630b. I wonder why they chose to send me this instead of the HG659b?
I don't really care, as long as it does the trick. I intend to be following the instructions here, so I can run it in bridge mode, and have wifi served by our Asus RT-AC68U... for the devices that need it. All the really important ones are now on Ethernet now. One of the few perks of having an ex-leaky home; Ethernet cabling was installed during the reclad process. :-)