Oddbean new post about login | logout our girls attend Montessori. it seems to me that it's a way different outcome from the prussian public school model.
This can't be cheap. My experience with private schools, they all spout statism sooner or later. Obedience to the gubment. Not so much when they are young. Especially with Waldorf/Montessori, but since they are regulated entities begging for permission to educate, know that you'll need to spend your time reeducating the kids at some point.