They seem to have issues with the ONTs (3Gbe at least) as they gave me a 631 (dead on arrival… sadly) and the installer told me that they also had alot of customers with issues with the 602x (SFP). Mine was half-dead on arrivial (dead rj45 after a couple of hours) and after 2 days with no rj45 connected (I left it on if they want to test/update remotely?) it wont light up at all
Be careful to triple check the equipment! If something goes wrong at any point, they dont ship replacments like Virgin Media, you’ll have to wait 32!! days for an engineer to visit! They are over their heads with aggressive expansion.
Downtimes with them is going to be an issues I think…