We arrived yesterday at 3:00 on AA from CLT (with stairs and no ramp!) and also had to take a bus, even though there was only one jetway in use (Air France). When you are bussed in, there is also a half flight of stairs as you enter the building.
There was a winding line at the kiosks, all of which were working, but only 2 employees helping and that includes the one who was directing people to the open kiosks. Most people were using one kiosk for their whole group so it quickly became a confusing mess. We tried my wife first and she was accepted with no issues. My passport was read correctly but since I initially did not remove my glasses, my picture was rejected and I had to go to an agent. Other than another winding route through the ropes, there was no wait at the window and I got the old fashioned passport stamp.
Baggage was out shortly and then off to AAA car rental. On the road to OBBR by 4:00 and decided to take the causeway as the new opening time was to be 4:30. Right at 4:12, down came the arms and it opened for a sailboat. Oh well, still at OBBR by 5:00 and settling in nicely.