What feature of "guaranteed for late arrival" is most appealing to travelers?

The feature "guaranteed for late arrival" is particularly appealing to travelers because it ensures that a room will be available even if they arrive after the standard check-in hours. This is crucial for travelers who may have delayed flights, long layovers, or other unforeseen circumstances that could cause them to arrive at their destination later than expected. Knowing that their accommodation will still be secured gives travelers peace of mind and eliminates the stress of potentially having to find another place to stay late at night.

The other options do not address the primary concern of ensuring accommodation availability upon late arrival. While last-minute changes to an itinerary or cheaper rates might be beneficial in certain contexts, they do not specifically alleviate the worry associated with room availability. Additionally, early check-in policies are separate from late arrival guarantees and do not deal with the assurance that a traveler will have a place to stay regardless of their arrival time.