I just got back from that cruise last week. I would get there early as it is quite congested and boarding was the most unorganized I have ever seen. They are boarding 2 ships ( Celebrity is boarding on one side of the room and Ovation on the other side)at the same in that terminal and it can be difficult to hear the announcements. Celebrity started boarding first but it felt like 90% of the people on the Ovation side got up and headed for the doors. They just stood there for about 15 minutes and then they opened the doors and people just started going no matter the priority level.