First the good news. We were in Aqua class and it was outstanding. The food was great for breakfast and dinner. Service was terrific and the maitre d was the best we have ever seen.Unfortunately Aqua class was the saving grace of our trip. From embarking in Shanghai onwards we were completely disappointed with all aspects of the cruise. Embarkation at Shanghai took two hours and the crew tried to blame the Chinese authorities, but we breezed thru immigration and were only held up because of the shortage of Celebrity staff and scanning machines on the gangway. This continued to be an issue at every port of call.Having got on board we went for lunch at the Oceanview Cafe. Sub standard food and a very drab environment. I have spent a lot of time in hospital cafeterias and most provided a better experience than the Oceanview cafe. As mentioned we could eat breakfast and dinner in Blu but had to endure Oceanview for lunch. We often opted for lunch at Bistro on Five which was $5 each extra but it was better although very limited in choice. Throughout there was an obvious attempt to separate us from our cash with drink packages, expensive shore excursions and "if you don't like the food why not try a speciality restaurant".The entertainment was very average with repeat shows on a regular basis and seemed to end in about 40 mins each night. Others have mentioned Norovirus and coughing from many passengers and I will not add to the comments except to say it was not well handled by the crew.This is a very ordinary ship posing as a 5 Star cruise. One of the many negative comments from our fellow passengers focused on the lack of visibility of the officers who seemed to be in hiding for most of the trip and the customer service staff should all consider a career change.On our return we immediately cancelled our planned cruise to Australia in the fall with Celebrity and will probably not consider them for our cruising again. One wonders if cruise lines are cutting back costs to try and fill the ever larger ships they keep launching.