Just saw my first DCC attempt in Australia.

At Sydney Airport Domestic Terminal, when I tried to purchase some pasta, the ANZ terminal, after "cheque, saving, credit" selection screen, prompted something about FxRate, and gave me two choices of Yes and No. To select No, I had to click "clear", and then click "Enter" directly below to accept $A amount.

To add to the confusion, the "cheque, saving, credit" buttons are other three buttons directly below the screen, so the DCC part take you to another section of the keypad.

Compliant, but a little bit tricky.

Other than that, haven't encountered DCC anywhere else (over 100 transactions).