Now that Ruben's is under new management, it is a much better restaurant.
The food is well-prepared and very reasonably priced. It offers a large menu and surprisingly up-scale daily specials for a diner/deli, such as prime rib and lamb shanks. There are also a large number of breakfast and "senior" specials, though I don't think they check IDs to be sure you're old enough.
The turkey ruben is generous and tasty.