I'm seeing mixed messages about the use of the UDP specifically on embarkation day - can it be used or can't it be used for lunch on embarkation day? Royals FAQs state lunch on sea days - so I would think it would not work on Day 1.
We have The Key in addition to UDP so know we'll get the "Chops" lunch in the MDR which I'm okay with but if there's another option (Jaime's for example I think we may rather do that and then actually go to Chops proper for our sea day lunch).
What say you Cruise Critics?