http://support.unblock-us.com/customer/portal/articles/13175…
So it's basically all HBO shows (with the exception of Oz, Deadwood and maybe some others) plus a large number of movies streaming in HD to your computer for ~A$15 per month (though you have to commit to a six month subscription for this price). No need for any other cable subscription.
Worth it?
Good to know but IMO $15 a month is too high compared to Netflix and Hulu. Still, HBO has some great shows.