Once when we stayed at AKL, our room was such we had to walk on the level above Boma to get to the elevator. There was always a crowd in the morning, no matter if it was late or early. I would make a ADR.
I would definitely make one. It's best to have it and then cancel it later if you don't need it, then to not have one and have to wait 60 minutes for a table. Plus, there is no $10 charge for the no-show.