I had 5 NBN appointments and NBN Co failed to show up for all 5 of them, three of them were booked through Optus and the last two by Telstra... I have helped other family members with NBN connections with iiNet, Dodo and iPrimus and in those cases, I would say it really makes absolutely no difference who the appointments are through... NBN Co are just purely hopeless...
When you combine that with hopeless staff at the ISP it is just a pure nightmare though.
When you combine that with hopeless staff at the ISP it is just a pure nightmare though.