Seems like a good deal if you can't get ADSL, or if you don't use much data. Should be faster than ADSL for most people. Not fixed to an address according to Optus FAQ so great for renters.
EDIT: Turns out the speeds are capped at 12 mbit, which really lowers the value compared to ADSL.
Tried NSW 2540 address and says not available. Weird.