I think this is where the individual school matters. Books only go so far.

Our school is small and certified, but the directress is very much into making it a warm place (in, I will say, a very calm, low-key way... something that appeals to me 'cause I sort of hate the cheerleading aspects of some early childhood programmes where it's all! rainbows! and! unicorns!). The way I learned this when I was touring/interviewing was just asking questions like what they would do for naps (rock my son until he was comfortable) or to comfort an upset child (carry and hold until he was feeling better, if he wanted, or help him to a cosy corner).
Now is the school like our house? No, not really. My son's teacher this year is the kind of teacher the kids are a little bit worried about in September, but totally in love with by December, because she is firm (not in a mean or un-childcentred way) and they come to trust her. That is so not my style, but I recognize the value of it. Sure enough she was off yesterday and my son was "lonely for her."
I also think it's good to remember that you don't have to change your lifestyle to fit a school (this is one reason we eliminated our particular Waldorf). We extended breast fed, co-sleep still, and although we have adapted our home to put things at our son's level, etc., we've never really tried to become a "montessori home" - we just are our home. We are very happy with Montessori, for sure, but for us it's not the guiding light - we are, and Montessori fits in with that ok.