It's good. Their parents recommended it to me by classmates who often pick up and drop off their children together. I also went to see their teacher Meng Jinkang and signed up for his math training class. Moreover, Dongshan Square Campus is not far from our home, and it is convenient to pick up and drop off. He is very good at teaching mathematics. For example, I once went to pick up my child and listened to him muttering on the way, so I asked him what he was chanting. He said that he was reciting the formula taught by teacher Meng, and I thought the teacher was reliable at that time.