Very smooth. The ship was only ½ full, so there were few lines. We were asked 4 times to show our vaccination card and proof of a negative test taken 3 days or less before the cruise. Massengers seemed very comfortable being maskless, though some wore masks in corridors and elevators.
Accommodations excellent. Attentive cabin steward. Lots of room in cabin and bathroom for storage. All shower products are now in pump form. Balconies small. The keyless entry with the app only worked 1/2 of the time. Celebrity provides bathrobes and umbrellas. Bed comfortable; I always ask for the body pillow....if only I could stuff one in my suitcase!!