I tried their unlimited internet service for a while and dumped it.
While they tell you it's unlimited on the phone when getting you to sign up in fact it isn't.
They limit the number of megabytes, they throw you off after 20 mins of inactivity and they throw you off after 4 hours of connect, even if you are in the middle of a download.
Their billing practices are shonky also.
I'm still using them for phone, but I'm cross with them for not reversing charges for call waiting I didn't order, for 5 days of interrupted service due to a Telstra defect and for switching my billing to email without my permission. They ignore email.
Ethically challenged as far as I'm concerned.