I read that Coco sometimes does not honor a specific room reservation from a booking agent like Orbitz. I'm worried we won't get the room we paid for.
Although we've never booked with Orbitz I don't think you'll have a problem. A "specific room reservation" in my mind means a room (ie "I'd like room 421") and they only do that if you book directly with them. If you booked a superior room, that's what you'll get.