Hello, personally, I think Jie Jiang Piano City is more formal. Teachers are graded according to their diplomas and teaching experience, and their prices are different. You can choose a suitable teacher and often engage in concerts and other related activities, which is conducive to the cultivation of the comprehensive quality of music. Of course, other small training institutions are also good, but on the whole, teachers are highly mobile, which is not good for children. It's best to find a long-term teacher. Good luck!