I think DL's BOB is light years better than US' BOB. They have a salad of some sort and a sandwich of some sort. They are obsessed with "turkey ham" and like to use that at breakfast and lunch.
The difference is that US also gives you chips and a cookie, DL doesn't.
credit cards are accepted, but no receipt like DL.
Also, don't plan on getting BOB if you are past row 10. They bring like 2 sandwiches and 2 salads.
The snack boxes are a joke.