If Celebrity wants to maintain their reputation as the "high-end" of the mass-market cruise industry, they need to either retire or completely overhaul old ships like this.
Embarkation was fine. However, for the first time in all my 7 cruises, the corridors leading to rooms were actually blocked by closed doors - so instead of some lucky people getting their room early, everyone had to wait.
The service is the most surprising disappointment. Perhaps I've been spoiled in the past, but service on this ship was slow, reactive and not entirely bright. Our room steward was polite but had no personality and made no effort to say anything other than "good morning" and "good evening." Our wait staff in the main dining room was equally polite, but fairly useless. They tried to accommodate special requests for other people at our table, but perhaps due to a language barrier, constantly got things confused.