My wife and I travel at least once a year on the Silver Star from Newark NJ to Lakeland FL in the handicapped bedroom. The Viewliner IIs are much more handicapped accessible than the older ones. Diners are back and the food while not great has improved greatly.
The issue we have had is with the staff. Most of the sleeping car attendants have been very helpful and pleasant but we've had some really terrible ones. On a recent trip he refused to carry my suitcase from the platform to the vestibule even though I use a cane. Said we "should have checked all the luggage", we had two same suitcases.
My wife has spoken with Amtrak about this lack of service several times. Amtrak is concerned and agrees some of the staff would be better in other jobs. Twice we've gotten checks from them over this lack of service.
They are trying hard but the budget and personnel issues are hard to overcome.
It still beats schlepping to the airport and having to rent a car when we get to FL.