What do you think of Xu Cen? Why?

I feel that this person's teaching should be good, because this guy's explanation should be more practical, not that kind of vain flicker. A teacher who is willing to teach doesn't have to care about his technical level, but about the level he can understand the needs of learners and reach. Usually, they have long hair, big uneducated arms, exaggerated earrings, swearing and never leave their hands ... These guys have actually learned crooked ways. You can expect them to teach you the right path. They may be a little shiny and famous in a small scale, but they will never stand in the position of piano learners and guide them to learn and make progress quickly and effectively. My humble opinion is above.