We are veteran cruisers and were dubious about a ship this large. This cruise had 3900+ passengers with 1300 "junior cruisers." The water park features certainly satisfied many of the younger set.
We were in a balcony cabin. It was very modest in size. The balcony was about 50% of the cabin size. Beds were short. Both of us are 6' and over and our feet plus some hung over the edge of the mattress.
I was most disappointed by the movement away from the all inclusive model of cruising. While the number of dining and entertainment venues is large, most involve an additional fee. None, including the Cirque du Soliel dinner were worth the expense. While the entertainment was entertaining, the food was forgettable. Fortunately, the portions were minuscule so there wasn't much to forget.
We found service to be dependable in all venues. The TV programming was disappointing. No free movies; a few news channels. All designed to have you out of the cabin purchasing extra entertainment.
We didn't leave the ship, having experienced all the ports previously, so can't comment on the tours.
The high profile of the ship made for more motion than was expected. The stabilizers didn't offset the wind effect on the superstructure. Although the seas were generally modest the motion was greater than normal. Maybe too much of a good thing.
We had a good time, but once on this monster was enough.