I am in total disagreement.
We are 4**** with Hal and have been on Zuiderdam, N Statendam, Zaandam for about 20 weeks in the last two years. We were also on Constellation for ten weeks from Nov to Feb 2024.
Food and especially the desserts are better on HAL. The service on both lines are similar.. fantastic. The food on Constellation was stellar over Christmas and New Year but deteriorated after that. The entertainment on Celebrity is much better and varies whereas on HAL it was dismal. On the N Statendam in September 2022 the music walk was great but Lincoln centre has been cut. If you have a great Piano couple, the experience is magical. You get a clunker as we did 4 months later, the experience is to be avoided. The dance bands on Celebrity are fantastic. Trivia on Celebrity is much better . Our Zuiderdam experience last September was enough to wonder what happened. We are booked on Volendam in September for a back to back from Quebec, but we chose Celebrity for a 10 week ocean side condo this winter.
There are no two cruise lines that are more similar than HAL and Celebrity. A different ship can make a world of difference.