I believe that wifi “browse and stream” is an up charge even in YC. We had to pay on Seashore. Too bad, basic gratuities are not included.
We have made the transition from Celebrity Retreat to YC. We feel that the YC offers more and is a significantly better value. Having experienced YC and seen the crowds elsewhere on the ship, we will only sail YC on MSC.
In terms of is it worth it, it is difficult to put a price on the privacy and service received in YC. However, to us, it is well worth it for what it provides. On the other hand, dealing with crowds in non YC cabins Is not worth it to us. We would prefer to sail less to be able to afford the YC experience.