I've been an early adopter of this since May 2012. I've used it quite a lot and it's great. The mileage is going to be on how other courier services are accepted. If you have a package couriered to this address from anyone but StarTrack, it's not going to be accepted. So for national deliveries this service is great, however international shipping (which is generally couriered) ends up being a problem. Either way you should sign up if you're Australian, this is the best thing Auspost have done in years.