By all accounts it has been a huge success and Aus Post have already confirmed that their will be a large scale rollout. This will be worth tens of millions to TZL which has a market cap of only $40m, but already generates revenues of $23m pa!
Put 2 and 2 together, and you have free money.
Then consider that TZL is also working with Coles to provide click and collect parcel lockers at 650 servos, worth tens of millions more.