Some of the stuff on the new Acela menu seems a bit downmarket for First Class (e.g. the Jimmy Dean sandwich), and if it's presented the same way it is on the LD trains, it will all seem below par. Really, if you're a well-dressed business traveler, which a lot of people in Acela First are, do you really want to be trying to manage a super greasy breakfast sandwich while the train is hurtling along at 120? It also goes back to value for the price paid. If you book a room at a Hilton or Hyatt, you'd expect breakfast options that would be somewhat better than McDonald's food still in its takeout wrapper.
In terms of the LD trains, if the flex menu will now include an omelette for breakfast, I'd definitely consider that an improvement over the current offerings. But it's the kind of improvement that maybe makes it 10 percent more likely (vs. 0 percent now) that I'd consider taking a 12- or 15-hour trip on one of these trains if I really needed to get somewhere. The whole flex concept and presentation is still just a real turnoff to me. There's no way I'd plan a cross-country family vacation with that same menu for lunch and dinner day after day.