As with most schools, it depends on the teacher. There are horror stories about teachers at every school - no matter the reputation. If they are not willing or capable of doing what you need now - then the experience can be a terrible one. The reputation will not make up for that mismatch. It is not always easy to switch teachers at some schools. I have known 3 voice students who left top conservatories because they got very little instruction in technique, started having vocal problems and the politics at the schools were such that it was easier to just leave than try to switch teachers. Don't gamble on teacher choice.