While we have toured the private rail cars we never took a trip in one. Last ones were saw were going to Denver a few years back. IMO, the sleeping accomodations on those cars are no better than what Amtrak has to offer and in many cases worse. A private car passenger that we met on the platform at DEN told us that the food was gourmet and fresh cooked to order and the liquor selection was outstanding. The private car experience sounds nice but at $2,000 +per passenger we'll pass. The other thing is that you have no access to other cars on the train and Amtrak really doesn't want them on their trains. What I can see are sleeping cars leased to Amtrak and used in regular service like Pullman once provided.