I think I have been lucky with the U.S. credit cards as we have not ended up behind on the paying of ATO. I think my net points cost has ended up near zero rather than 0.42% but that may just have been luck on the transactions we completed in the last 2 years.
Others I know have enjoyed the Cit US cards and they are smiling too.
I am not sure if someone who doesn't take the occasional risk, nor does regular international payments should get on board despite AA miles being one of our family favorites.
