NEVER purchase "the key"! We purchased it mainly to be able to disembark before anyone else but enjoyed reading that there's other perks. You get quick lunch in the dining room (steak) when you first get on board, you get wifi for 1 device, 1 scheduled IFly, and 1 scheduled North Star, oh and let's not forget the small plate of fruit delivered to your cabin.
We stood in line to disembark the ship with our luggage just like everyone else.
If you purchase the specialty dinners.....the food was great.