The Oasis of the Sea has no true adult only areas. Most areas have free-range children running everywhere, including the casino and in all the hot tubs. The ABI beach excursion was wonderful and even the bus ride was exciting and we would love to go back to this beach while the Orient Beach excursion was rocky, water cold and dirty, and not what the picture shows. We were also left by the bus driver in misty rain conditions.
This ship may be larger than some cities but sometimes smaller is better. We enjoyed the cabin with the balcony overlooking central park, but the old dirty sofa in the room should be removed. You need to not rely on the Windjammer for your meals. My time dinning is easy to make reservations and is wonderful as well as the speciality restaurants. The shows we got to see were wondeful, had problems with the Comedy club reservations. Expect long delays when disembarking due to shortage of custom people and they do not arrive on time. You may not get your electronic equipment back if they seize it when boarding ship.
Bathroom was so much smaller than other ships we have been on. Green sofa in room was black from dirt and needs to be taken out. Layout was a little awkward, especially getting to closet