I have my mobile with them and they're good value, credit lasts a while and they don't bog you down with confusing bonus 'my credits' type junk. Just straight up credit which I like
I have my mobile phone and internet with optus and seems to work fine everywhere I go for work, I do anywhere from 300-800kms a week and even works in the tunnels (bluetooth handsfree) on Melbs road network. So that shouldn't be a problem!
Know idea if it is actually working or not. But the Amaysim $39.95 unlimited deal looks great considering the other telcos charge around $100 a month for the same thing (including Optus)
I have been with them for a while. It's good if your a light user. No good on the train for internet though. I get about $10 credit for calls and then get about $15 data pack which is really good. When the reception is really good, the service is really good. Anyway, it's only $2 for a sim anyway so it's worth a shot right?