There just is not enough space on in the overheads for a rolling suitcase and there is minimal space at your feet. They will check your rolling carry on as you board the plane and then you retrieve as you get off the plane, seperate from your luggage. So you can take it with you but just not on the AE flight. Also, if you bring a laptop with you in a abckpack, the backpack is not considered a carry on but a personal item. Just another way to get an extra few items with you. This means you can essentially take TWO carry ons on your flight. I hope this helps.
AUA & Ross Forum Moderator