The problem with the Cardinal is that the consist is limited -- it usually only has one sleeper, and one Amfleet cafe car that is used as a diner-lounge, with one end reserved for the sleeper passengers, who are served flex food, and the other end for the coach passengers, who have to order off the limited cafe menu.
I've taken the Cardinal a number of times, and I like the ride, but they really need to upgrade the consist and provide additional lounge space for people to be able to get out of their seats during such a long ride.
They really need to make the good end of the Cafe car available to paying customers, whether coach or sleeper customers. It was frankly infuriating last week to see all the Reserved for Crew signs on the excellent booths (half not being used at all) on the longer all-window end, while we were shunted to the shorter end where two of the booths don't even have a window and at least one booth had one side taken out. Does Amtrak realize some of these are trips are once in a lifetime for some passengers, and that they picked your route to see the scenery? This thread is a perfect example, a great thread that's all about which routes have the best American scenery and which side of the train to sit on and which direction train to choose! ... End of rant.