I'm inclined to agree with John, I and six of my friends are all on TPG FTTP in Townsville, I was a bit sceptical when I changed over from ADSL2 to fibre, but my old provider had been taken over previously and was not going to NBN.
Of the relations and friends I know on FTTP, 3 are on Telstra, 2 on Optus, I on Aussie BB and the rest of us on TPG.
In the three and a half years approx when all of us changed to FTTP, I have been at each installation with the following experiences.
All of the NBN techs did a reasonable job of installing the NTD, and always in the preferred location suggested by myself on behalf of the residence owner, from what I have read, some other cities didn't fare as well with the techs trying to do the easiest install for themselves, regardless of the rules for installation! I met the same tech on 3 separate installs and he was a local who had a bit of pride in his work.
The Telstra connections with the exception of one were trouble free, but incredible problems setting up an email service, all the people were existing Telstra customers but their email addresses were not changed over or setup correctly on the Telstra servers, one took 3 months before Telstra admitted the existing email address had been removed from their server database.
The Optus connections were totally trouble free, but recently Optus has had 3 major outages in the Townsville area since early December 18 with my friends being off line from a week and in one case 3 weeks.
The TPG connections were also trouble free and so far I am the only one who has had any problems, with a reduction in my speed (100/40 plan) but not loss of connection, back in January 2016, I carried out all the tests I knew I would be requested to do by TPG, contacted them with the results and the issued was referred to NBN and fixed in 48 hours, there have been no issues since. Another thing I have noticed is with TPG using the uni-v ports on the NTD for the phone connection instead of being plugged into the Telstra or Optus supplied router, the phones on the TPG service have a more stable connection and better voice quality.
I'm sure others will have horror stories, but so far the TPG service has been easier to set up and more reliable than the other providers for myself and my friends