Hi Doria,
I bet your daughter and her family will be enchanted by Disney's Old Key West Resort. It has such a lovely, tropical, laid-back style. I also appreciate its proximity to the Downtown Disney shopping area.
I recommend that your daughter look at all the possible
table service restaurants at Walt Disney World and make one reservation per day during her trip. You can do this by calling (407) WDW-DINE up to 180 days in advance of their vacation. If, as the trip approaches, your daughter's family decides they would prefer to eat only at quick service restaurants, they can always call and cancel the table service reservations. However, it can be difficult to get reservations of this kind closer to their departure date so it pays to make more reservations now.
As for timing, I recommend scheduling earlier dinners if possible. If your daughter's family is comfortable eating between 5:00 an 6:00 pm, I think they will find the restaurants less crowded.
Wishing your daughter and her family a truly magical stay at Walt Disney World!
Jill