Finally naturalized today. Wanted to share my experience at the Moakley Courthouse if this helps others.
The time written on the letter was 12:30 and we showed up around 12:00. It took about 20 minutes to clear through both security (they take your cellphones and water bottles) and to check in with USCIS staff. Then the families and immigrants are separated into two attached but separate rooms (separated only by glass). We sat around waiting for the judge for about an hour until they entered the room at 1:30. After fairly routine and quick proceedings (~20 minutes) the immigrants were released to pick up their certificates.
