We traveled with two kids, ages 9 and 11.
Embarkation: BRING YOUR PASSPORTS. Disregard everything about birth certificates and all that. Bring a passport or don't go. We used birth certificates and drivers licenses as we have on all of our cruises. Royal almost didn't let us board.
Got to the terminal at 1pm. Made it through security and all the frustrations of checking in quickly. The lines look awful but they go rather fast.
Great location. But be prepared to take the stairs plenty of times. The elevators are a mess during certain times and the stairs become your only option.