Why is "Yangzhou March Fireworks" rated as a timeless quatrain?

For Yangzhou, it is indeed a famous sentence through the ages. This poem poetically depicts Li Bai's farewell to his friends and his gratitude for the party he went to. Because I can't bear to leave, Guangling, which was praised, is beautiful. In fact, Yangzhou in the Tang Dynasty is very beautiful! And the poem is catchy and describes the charm of a place at that time, so it is called a famous sentence through the ages.