Beijing Capital International Airport is the worst...

Beijing Capital International Airport is the worst airport and chaos I've ever use. Arrival is good but departure is a terrible for me. Although this is one of the most biggest airport in the world.

It's no announcement when the airline changed departure gates. But only runs on the monitor board 30 minutes before boarding time. And when all passengers ready on board, the captain announced that the airport was not allowed to fly up. Then officers just let we knew that they have to arrange for a new queue to fly up. Unfortunately, we were in 100 so all passengers in that flight had to wait for 4 hours on the plane.