The Hawaii Cruise is always enjoyable (our third). Weather could have been better on this trip (overcast days seemed the outnumbered the clear days and some rough sea conditions).
Kauai, in my estimation, was the best part of the cruise as it wasn't bothered by the smoke from the big island. Maui was OK but LA people would call it smoggy due to the haze from Big Island.
Cruise personnel were great but they push to hard to get your participation in (buying products and events) aboard ship. Entertainment was good as always on Princess, but you better get to the early stage shows well ahead of time. Full house 30-45 minutes before early shows.
Always maintained clean and a great location for quick access to stairs "and food"