So as others have said the door hanger is gone, but we didn’t use it or order room service this last cruise for breakfast so I cannot comment on ordering ahead.
The ocean suite is larger, but service with it is the same. It does come with priority check in, boarding, and debarking. We really enjoyed our ocean suite on the Mardi Gras.
I’ve been on the liberty years ago. There’s plenty of quiet reading places and I still think there’s plenty to do for everyone.