OK, this is ominous. ALDI Mobile has imposed daily download limits on its users, which is exactly the same thing that happened with Kogan Mobile not long before that service had to shut up shop last month after its wholesaler ispONE went broke.
Fat Duck Tech points out that the ALDI Mobile reasonable use policy has been updated, meaning customers who use more than 1GB of data in a day can potentially be dumped. If you purchase a 2GB data add-on, you're also liable if you use more than 400MB a day within any three days over a 30-day period. Ouch.
ALDI Mobile also used ispONE, but unlike Kogan Mobile managed to negotiate a new direct wholesale deal with Telstra which allowed it to continue operating. The new conditions (which presumably reflect new contract conditions) might make it a substantially less attractive offer if you're a moderate data user.
That said, as we pointed out when Kogan Mobile started experiencing issues, one of the big advantages of prepaid is that you can switch whenever you like. If you do want a cheaper prepaid deal, there are plenty of alternatives with less restrictive data policies.
AldiMobile adds daily data limits [Fat Duck Tech]