It is heartening to see Chang's bubbly enthusiasm and the effort he makes to comfort the contestants before their performances. He is confident before the camera & articulate in expression, which goes a long way in creating a pleasant atmosphere. His interaction with the judges, audience, the contestants and his co-host are fluid without any pretense or inhibitions. To be honest Chang seems 100 times better than the other more experienced youngster on the rival show whom i have seen to have deadpan expressions, repetitive and boring.