They make buy stuff which is clearly for them to make a profit; shirts and background priced at >$50. Oh at least they might pay you that back.
They are the only company (out of currently 5 companies) with Chinese students to moan about a map.
They make you go through a lot of induction courses and do a demo, to then show you a schedule which is rubbish in weekdays, where they offer you 3 classes a day at $13/class. Where the induction tells you 6 classes a day on weekdays.
Apparently the top management in the parent company TAL has been involved in some serious fraudulent activity.