Who knows that the training of Feng Shui in Jacky is true?

Jacky Feng Shui is a well-known brand of Yi Xue in China. Their Feng Shui training courses, including watching Feng Shui services, are very formal, mainly focusing on speed. A friend of mine used to work there, and no one knows this place better than me. Now many so-called masters have been fooled, and they will be finished if they are not careful. What others say is useless. I can only give you these opinions, and I won't know until I learn them myself.