I’m building a new home. Any experience with nbn’s Preinstall service?

I’m building a new home and I hear the NBN will install the NTD during lock up phase. The primary benefit seems to be that no technician appointment is required after you move in with the usual long wait and getting mucked around. Furthermore, any major issues have a chance of being sorted beforehand. A good ISP should then be able to activate a service on move in day, or otherwise in minimal time.

Preinstalls are requested on the nbn website, https://www.nbnco.com.au/develop-or-plan-with-the-nbn/new-developments/pre-installation-request

Sounds good in theory so I was hoping for any real world experience.