I flew over president's day weekend from A, but the gate they used was barely big enough for a 737, let alone a 777. Boarding was extremely chaotic - partly because the gate agents didn't get there until about 50 minutes before takeoff. They took about 10 minutes to get set up, then kicked everyone out of the seating area and made them line up to reenter.

They were very late to the game when it came to setting up.