My last cruise on Celebrity was the end of January 2020 right before everything went down hill. Everything was great on that cruise for the friends and I that all traveled together. I don't know about now but I definitely feel that Celebrity and Virgin are the closest comparisons.
As to the Crown Grill - I ate there in April of 2023 and also in October of 2022. Two different ships and my steaks both times weren't cooked the way I asked for them. I like them warm rare and each time they came out medium or medium well. On my April cruise I think the chef got pissed and just slapped it on the grill, flipped and then sent it out. I shocked the waiter when I told it was great, because I will eat it that way. On the October one, it took 2 steaks to get it to at least a medium rare. At least at the Wake when I tell them I would like my steak cooked Pittsburgh style and rare they know exactly what I want and it comes out perfect.