We had done this cruise before on the Solstice three years ago, had seen all the sights, and stayed in Lahaina and Waikiki for several weeks some time ago. So we merely wanted some R&R, good food, originating in Vancouver, some sunshine, and were not interested in organised shore excursions. We got exactly what we paid for.
Embarkation at Vancouver took much longer then we expected. Disembarkation at Honolulu was OK.
I particularly enjoy Celebrity's English breakfasts and the variety in the buffet at other times, especially the cheese selection in the afternoons. The MDR - and the service there - was excellent, though one or two evenings we couldn't get the early time we preferred. One night in the buffet I complained about the poor quality of a prime rib, as did the passengers at the next table. Qsine was a gimmick and the food not particularly good.
Standard veranda cabin. Plenty of storage. Well laid out.
Don't know why you visit Hilo.