Didn't rewards Canada write a mini essay on this? Simply put it makes Amex $ and pays for all the perks off all the credit cards out there. Chase cards don't have perks.
Be smart and use the chase cards for all Forex transactions. I have the amazon.ca card.
One issue is that Chase's security SUCKS. We sent 3 guys back to Pakistan on Air Canada with I assume one way tickets. I guess their last names and ours being utterly diffident wasn't a issue. $4600 total fraud!
And earlier this year Capital One wouldn't let me pay a annual car insurance policy for 2 cars! Like someone can make off with car insurance.... It was ok once I called but really?