I was in the same situation as your friend. Finally, I consulted several schools in Zhengzhou and finally decided to receive IELTS training at Zhengzhou Haifeng IELTS School. Let me talk about my situation at Haifeng IELTS School. Haifeng IELTS school is not very big, there are not many advertisements, and the number of students in each class is not very large. But after going in, it feels very practical. From consulting to teachers, every staff member is very good and has a harmonious relationship. Every teacher's teaching has its own characteristics, small but precise. This is all my personal experience. I think Haifeng IELTS School is quite suitable for me. I don't know if it suits you. Go and see for yourself. I hope to find a teacher who suits me, and the one who suits me is the best.