After a bumpy two-and-a-half years with Exetel, I'm pulling the plug. They were cheap when I signed up, but are now in the business of arbitraging Optus new-customer contracts and picking the cracks around wireless broadband. They made it impossible to plan for the future; the cost of changing ADSL plans varied from free (when I signed up) to $70 to $10, all for "business reasons", and usually concurrent with the imposition of a surchage intended to lever people off their perfectly adequate plans onto more lucrative "new-customer" contracts. I want a provider that has the foresight to be profitable now and next year without having to play these games.
Presently Exetel seems to be the cheapest non-Vodafone reseller of wireless broadband, and I was tempted to sign up with them so I have some connectivity in the coming uncertain days. However once signed up to their bottom-of-the-barrel plan, I cannot later adjust the quota without breaking a 12-month contract. Moreover they were offering these cheap last year when I didn't know they'd be playing the tricks they are now.
The prevailing attitude in Australia these days is "if you don't like it then leave", so yeah, I'm gone already.