I have also worked for APH for several years and Ms Okada was an elegant, sophisticated and intelligent woman.
I believe APH was established sometime in the 1970s. If Ms Okada is as bad as "Dan" and "Usagi" says, she would not be able to run the school for so long. APH teaches many languages (around 15?) and therefore employs many teachers, but I have not heard any dissatisfaction from other teachers. Well, all the teachers were quite nice there, making the school atmosphere nice. For me, it was a great place to work; nice staff, students and employer!