I'm an infrequent flyer collecting AS points with their credit card. If I could do it all over I'd collect AA points instead. I like their one way rewards to Europe. It makes it easier to book. I've read that AA will allow date/time change for free if available. I recently had to change my AS award flights to Europe (I know I should have had trip cancellation...why doesn't it come free with the credit card?) which were on AA anyway, and AS charged me $200!