But they aren't Telstra, they're Telstra Wholesale. The difference in coverage is critical - IMO - because although it's only another 1ish percent of the population, that translates to a huge amount of extra surface area. And those are the areas I go.

For some people they may be options worth considering, but if you're able to do with a smaller coverage footprint you may as well go all the way and jump on Vodafone. They have even better deals.