I traveled with 4 families with kids between the ages of 10-16. We had a great time and loved the ports.
We flew in the night before and stayed at the Springhill medical center. Not the nicest springhill we have stayed in but did the job since we were only there 12 hours.
Everyone in our group had Faster to Fun or a Suite so we arrived at 10:25 and walked to the front of the line. At 11:00 or so they allowed us to board. We were able to go straight to the rooms and get our keys and unpack our carry ons. Very easy. We went to lido and found some chairs while the rest of the group ate and explored. Guys burgers is awesome but wait for another day to try. Crazy line on the first day but never on other days.