Not bad. They run a school with all college backgrounds. In 2004, they began to teach Chinese in the northern part of Shanghai, and the environment was quite characteristic of China. Their family can not only provide IPA certificates, but also help students obtain other education-related certificates. They promised and agreed that those with good examination results can stay directly as part-time teachers. I suggest you have a look. It is very popular there, and there are fixed cultural activities to participate in every month.