How fast is the actual rollout?
We don't know. Commercial-in-confidence. And NBNCo say they don't keep figures down to the street level anyhow (which begs the question of which basis they are using to pay contractors).
How much has already been borrowed? We don't know. Commercial-in-confidence.
How much has been spent? We don't know. Commercial-in-confidence.
Insofar as we have to dig up half the flaming countryside, FTTP is probably worth it on a long-term basis. But that doesn't excuse the project from normal project management requirements.
And it shouldn't be excused from being transparent to the Parliament and public. The abuse of commercial-in-confidence for companies completely owned by the government is a backdoor for politicians of all stripes to avoid budgetary accountability while still leaving states and the commonwealth on the hook for debts incurred.
Where was the proper front end cost/benefit analysis? There wasn't one. Where was the 3-5 years of planning, surveying and preparation? There wasn't any. Where is the proper contract management? Oh, I guess we'll let NBNCo contract it to Telstra who will contract it to an engineering firm who will contract it to that bloke who has a van and who used to work for Optus.
Ends are important. But for the amount of money spent, so are the bloody means.