ZSK, I would not go that far about “definitely” and “bad behavior”. I am sure there are some seminaries and girls that behave and fit each other. Some parents have easier access to such than others … In this case, all I am saying – if there is no good seminary plan, do not get that upset. And, yes, in my family also, Mrs AAQ is more negative on seminaries than I. Knowledge is grief 🙂
But based on feedback from friends of our daughters, they are mostly happy post-sem, but at the same time, I was not able to draw from them any unique Torah or middos that they acquired. They got some confidence and some teacher they feel comfortable calling regarding hashkofas, but this seems mostly because they did not discuss life seriously in high school and home.