We have cruised on many ships from large ships to yachts. Celebrity has always been our larger ship cruise preference. This cruise was far from the standards of Celebrity. The ship being new is in great shape and very beautiful. We were in concierge level which is not worth the extra money unless you are crazy about a bathrobe. There are no value-adds that we could determine. Our stateroom and veranda was spacious enough and the same size as the veranda staterooms. Stateroom attendant aimed to please. Was was fabulous.
We had smokers near us and even though they were not permitted to smoke on the veranda it didn't stop them from doing so. They were reprimanded by stateroom attendant and supervisor. It didn't stop them. We couldn't keep the veranda door open because of the smoke.
Disembarkation at ports could have had better crowd control. Some people said that they stood in line for 45 minutes at one port. We opted out of getting off the ship early.
The staterooms are the same size as Veranda level. Concierge class in not really worth the extra cost. Nice bathrobe. But no other perks like priority disembarkation at ports, etc.