I have been on 2 Disney Cruises, (not the dream though), and I just got off the Monarch of the Sea's last Friday. I had reservations about cruising on the Monarch, because of the age of the ship and the reviews I had read. But my parents were paying for the vacation, so I had no choice when it came to the boat or cruise line.
I was pleasantly surprised. I was warning my children not to compare, or we would be miserable, and I didn't want to make my parents feel bad or like we were complaining. But I didn't compare nearly as much as I thought. Disney's ships are in much nicer shape, but we thought the food was better on
RCCL, and the pool area, was way better. On Disney ships the pools are chopped up here and there. So if you are with a young child, and they want to play at the Mickey pool, then move to the Goofy pool, you have to get up and hope to find another chair by the goofy pool. I could see my children no matter what pool they were in on the Monarch. Plus the Monarch has a lot more seats to sit in. On Disney people save deck chairs, so your always searching for a chair to sit in. On monarch there were plenty of chairs all day, every day, including the sea day. Since you don't have kids you don't have to worry about the pool hopping I guess.
The nightlife on Monarch was fun and there was more to do, and later into the night. I am sure that is because there are a lot of couples cruising without kids. The Trivia games, and the shows were nice, as they didn't all focus on Disney. Disney puts on broadway caliber performances, but the performances all deal with characters from Disney movies. It was nice to see, a musical revue, and comedy acts that went outside the Disney theme.
Our waiters on Monarch catered to our children much more so, than either of the Disney cruises I have been on. Which surprised me. However, our wait staff only had our table with children and then another table with only one child, all the other tables had adults, so they could focus on our kids more, as there weren't a lot of other kids to deal with. The cruise we went on had kids, but not anything like you would see on Disney. And that is to be expected.
Monarchs Private Island was nice, and if you have never been on
Castaway Cay, you probably would think its wonderful. But Castaway Cay is nicer in my opinion. Coco Cay (Monarchs Island) just had too much stimulation and junk around. There were too many little pastel painted buildings to deal with, so it felt crowded. The snorkeling was the same on both islands though. Monarch Nickel and Dimes you on the Island, they want you to pay for the water area for the kids, and it was $15 for an hour only. I suppose its their way of keeping the park area from getting crowded. They have a huge slide also whch was another $20 per child. But that was for the entire day. At Castaway Cay the slides and play area are part of your day at the Island. And our TA has always thrown in the floating tubes for us at Castaway, so we have never had to pay for those.
Disney's rooms were much bigger, and the double bath is awesome. But if you went with an economical room on Disney, since there are just 2 of you, there is no guarantee of a split bath either.
Disney had better excusions to do at the ports, so I give them that, and it is nice to switch dining area's each night.
I think Disney is the way to go with kids. And had I paid for the trip we would have done Disney. But I was pleasantly surprised as were my kids with the Monarch. And there were a lot of young couples on there enjoying themselves. There were 3 weddings on board on the cruise we went on. I wouldn't rule the ship out, if your want to save money. But now that I have been on it, I wouldn't go again, (unless it was free of course), but I would try another RCCL ship or Carnival for that matter.
Congrats on your engagement, and enjoy whatever cruise you decide to take. You will have a wonderful time.