Good preparation in the main subjects. Cons - there is no, absolutely no way to achieve justice. There is no equivalent interaction with parents. There is a "you must" and there is no "we must too". As it seems everywhere, the main result of the teachers' work is not the knowledge of the students, but reports, plans, papers, obtaining categories and so on. And some teachers are 40 years old, it's time to go on vacation and not cripple the psyche of children.