It wouldn’t be a stretch for anybody to consider it a step up. It for sure is a step up. What you gain (YC experience) exceeds by far what you lose (a balcony).
When I've seen the 22/23:1 ratio, I've assumed that this was temporary until Celebrity completed re-hiring of butlers. But you used the words "fully staffed". Are you saying that this ratio is permanent?
Those who are less physically able will find the separate walk-in shower to be godsent. Thankfully not an issue for us currently. Having stayed in it once given the hype here on CC, I would no longer seek it out.
Great bathroom. The rest of the cabin… meh. Very dark. The only natural light and sightlines to the ocean are the 3 ft wide door to the balcony. IMO this cabin is overrated on CC.