We arrived at the port and noon and they let us right on. Rooms were ready about 2pm; We had lunch and then we could unpack. I have been known to sneak into the room before it's ready and put my stuff in the safe and leave the hand luggage without a problem;

There is a port in Monte Carlo and a different on at Nice; We went from Monte Carlo. You can see the ship from the hotel or the marina; Very easy;
There was a line to see your docs to let you into the main security building; They take the luggage from there; Then you go into the building, show your passport, take your photo, get your room key; Next station is boarding, champagne and you're all set to relax!