Thanks for all the responses. (I'm not the OP, but if you see my post upthread, we're pretty sure we're going to transition DS in the coming weeks . .. ) It's good to know it seems like it's worked out for most people's kids.
DS will go three times to this (possibly new) Waldorf class next week. His current school is already on Fall Break, so it's a good time for him to sit in on the Waldorf class and see if he thinks it's a good fit. I don't know if this is common in Waldorf school or not, but in the school he may transition to, they want him to sit in on three days worth of classes to see if it's a good fit on both sides. If it is, then the class teacher will make a recommendation to the school council/teachers' board and then he can come.
I'm interested to see how it goes next week . .. .