Sector3, the catch as revealed by your link to their website is the monthly download limit. That is also the reason I use Ozemail Unlimited in preference to BigPond. 425Mb may sound a lot, but try listening to Internet radio and see how long it takes to chew up that amount.
By the same token I am gobsmacked that any broadband operator would put a pissant download limit on their plan, or that anybody would sign up for such an offer it. Isn't that the idea of broadband?
I shouldn't get started on broadband; it bugs me no end that I can't get broadband because I live outside the golden triangle.
GRRRRRR!!!!!