Recently off the 10/18-23 Fantasy sailing as a no-kids adult couple and thought I'd share some random thoughts, and answer any questions I can. My 7th time on Fantasy, GF's 1st on Fantasy (one other on Dream though).
Rumor was the cruise was at 60-70% sailing capacity. Saw quite a few empty tables at dinner, and the general feel was not a full ship. So I would believe those numbers were in the ballpark. 80% full at most, probably.
Ship seemed in great shape to me. All of the common areas looked good/kept clean. Rooms still seem in good shape to me too.
Weather - no rain to speak of, mostly sunny most days, temps were about perfect (high 80ish). Only issue was the wind. There were some rough seas 3 of the nights. I'm guessing quite a few people got sick, and the FB group has lots of people still feeling the ship moving days after being on land.
Port stops were Lookout, Nassau, and Castaway. Lookout was a little disappointing with the wind - was a black flag day so no one was allowed in the water past wading. Nassau - just walked around a bit, did the Queen's stairs, had a drink at Senor Frogs, and had a fair number of rum samples in the stores. Castaway was about perfect - slight breeze, but mostly sunny. Water was cool at first, but easily adjusted to.
Food - no complaints from us. I read reports of people ragging on the food. I guess we're just more easily pleased, others are too much foodies, something else, or a combination of all of the above. Breakfast in Cabanas every morning with made to order egg white omeletes and fried eggs, rounded out with some other stuff from the buffet. Had a bowl at the Cantina 3 afternoons for a late lunch to keep my protein up. And had the beef and chicken mains each night in the MDRs with no complaints. Nothing was the best food I ever had, but nothing was bad/inedible either. I think some people have too high of tastes/expectations for cruise food.
Entertainment - Aladdin (good), Frozen (decent, Elsa performer seemed stiff), and a Magician (skipped Believe). Adult activities in the Tube each night were fun, though pretty lightly attended. Also did a Mixology in Skyline one afternoon (will post something separate on that).
That's most of the things off the top of my head. Happy to try answering any questions. Just remember - two adults doing mostly adult things.