Originally Posted by
umguy
Kingsford Smith isn't close to the amount of traffic that ATL or ORD has.
For those who are new to SYD, though, Kingsford Smith isn't close to ATL's or ORD's domestic-international coordination, either. It's two terminals on opposite sites of the airfield, and requires a long, laborious landside transfer. The OP's warning is well taken.