This was my husband and I's third cruise (Second with RCCL) and my nine year old daughter and fourteen year old son's first cruise. It was during Spring Break. There were roughly 4100 people on board including 850 children.
Miami: We stayed at the Courtyard Marriott Downtown a day before the cruise. We took a cab to South Beach for $21 one way. The public changing rooms/bathrooms on the beach were filthy! We ate lunch at Ocean's 10 located at 10th and Ocean. They had a few $5 appetizers and half price drinks. They also had a clean restroom with a restroom attendant.
Embarkation: We took a cab from the Marriott to the port for $5pp. We left the Marriott at 11:00am and were literally on the ship by 11:45am! It was a pleasant surprise at how quick and easy the embarkation process went. After looking around the Promenade a little, we headed to the Windjammer for lunch. We were allowed in our cabin at 1:00pm.