1. Professional background and experience: As a national dance artist, Mr. Didi of Xiaotang Class has rich teaching experience and profound dance skills. It means that students can get more precise, professional and personalized guidance from senior authoritative tutors.

2. Market value and popularity: Didi, a teacher in Xiaotang class, enjoys a high reputation in the industry and has accumulated extensive influence by participating in the rehearsal and director of CCTV Spring Festival Evening. The courses offered by Didi in Xiaotang classroom have received great attention and recognition, forming a certain unique brand premium in the market.