My son also studied in Cannan when he was 2 years old. He and I also like the school so much. The teachers, principle and nanny are very nice. They have very good experience to train up the small child. I am very highly recommend this school for my friends.
By the way, why many people will change school after n1? Because there are many outstanding and good reputation kindergartens in Kowloon Tong. So the parent has many choices and will send their children to other kinders.