I haven’t been to Leona’s for a long time, but spoke recently with someone who has. Gentle food, were the words they used to describe it. They love Leona’s, but realize that a diner with a more adventuresome palette may find it a bit lacking. It’s very subtly flavored food. Not salty, spicy or intensely flavored in anyway.
I don’t know if they still do it, but long ago you would write your own order on a ticket, just like in a dining car on a train.