I previously stayed in the deluxe suite because I like having a balcony, but people smoking and playing music on their balconies pretty much kept me inside the room with the door closed. This has been my experience lately on other cruise lines as well.
So I booked a YC interior on Seashore as a solo cruiser for my next sailing. Other than a lack of closet space (maybe not so bad for one person) and knowing it is smaller than the other YC cabins, did you find it comfortable?