Do not sign up. I signed up. I'm in class. At first you were auditioned by a relatively awesome teacher. It is not a problem to earn hundreds of thousands a month. When you pay the tuition, I'll change the teacher for you. The new teachers are all novices. I'll show you the handout. Although there are one-on-one teachers who answer your questions in a perfunctory way, you find the answers to some questions yourself. Changsha Yiban does not recommend reporting, feeling cheated.