I last had food in Luminae in October of '22. And I'm just off the Marina T/A to Europe in a regular veranda. My travelling companions and I thought the food on Marina was the best we've ever had on O..and I've been sailing with them since the mid 2000's.
I did enjoy the food in Luminae but I thought it was very comparable to O. I did have a filet mignon one night there that was the best I've ever had.
I think, with Celebrity's vast increase in prices O is a much better value not only regarding food but in all other aspects. I've sailed on Celebrity since the early 2000s and plan on sticking with O at this point.