Personally, I didn’t like being in YC as I felt I had no connection with the rest of the ship. It’s like sitting upstairs on a 747 and ignoring there are people “downstairs”.
Don’t get me wrong, I enjoyed the restaurant and the lounge area, and the butler got a few things for us… but I missed the buzz and vibes of the different bars downstairs.
For me the perfect combo is having a JS and bring guaranteed to dine in YC so you get peace and quality at dinner; but you can still enjoy the rest of the ship without feeling you are “slumming it” going downstairs.
When I book my next MSC (with in 3 years to maintain status) it probably won’t be in YC ( unless there is a crazy cheap bargain)