We were on the 8/16 cruise:
Returned the rental car to
Avis just after 11, and the shuttle dropped us off at the port ~ 11:25.
Handed the luggage off to the porters and started in on the lines: security, then check-in. The lines were long but they moved very quickly.
We had 3 staterooms in our party with 3 different boarding times: 11, 12, 12:30. Even though we were the only CC members, they sent the whole group together to check-in.
Check-in was a breeze--we were done by noon. They gave us all the same boarding group: #5. They were on #15 when we started in the check-in line and #20 by the time we actually boarded.
The line through the mouse-ears moved quickly and we were on the ship by 12:15, eating lunch at Cabanas by 12:30.
Cabanas was full but we got a table and with the pod-style (lido) buffet, there were no lines for food.
Rooms were open by 1:25 (when we were done eating).
Easy breezy!
Disembarkation was also a breeze (off the ship at 7:45--no lines,
DCL bus to MCO was on the road by 8:10).