I'm a Special Eduation teacher, so I know all about educational philosophies, as I've studied them and I utilize a lot of Montessori methods in my public school classroom. As well, our public schools are doing the same with addition of manipulatives, learning skill scores, etc., so I would seriously question the quality of the schools, as well as the learning levels of these adults. Montessori education is skill based, which means that kids master skills in many different subject matters: life skills, culture, cosmic education, numeracy and literacy, to name a few. I can't imagine how this could be the worst experience ever, since accredited Montessori schools offer a ton of different learning, cultural and school experiences that many public schools do not or will not offer. There are a lot of misconceptions about Montessori schools - it's one of those subjects that people who have no knowledge of Montessori education feel the need to judge or assess the program, yet they have never been there. In your case, your friends say it was the worst, so I would love to know what made it the worst? What were their learning styles? Were these accredited Montessori schools?
Montessori education is not for everyone, just as public school, or private Christian schools are not - so much depends upon the school itself, as well as the students. If children are at an AMS or AMI accredited school, such as ours, where all teachers have university/college degrees, plus Montessori training, it can be an exceptional educational experience for most chidren. Our school has a resource team, (spec ed teachers, speech paths, therapists, etc), as well as language teachers, music teachers and yoga teachers, all of whom work with the children, plus highly educated teachers and administrators running the school. My children have been in Montessori school since age 13 months, and we love it! I have known other friends whose kids didn't thrive as much, but that had more to do with their personalities and learning styles, than the school itself. Both of my kids are very bright, and the principal and I discuss the external (Montessori) vs internal (genetic intelligence and cognitive abilities) aspect to this very often - would my kids be thriving as much in public school (I know the answer is no as I teach in public school, plus my daughter tried it for 6 months in combination with Montessori, and she was bored out of her mind!), or, if they had never attended Montessori? I believe it's a combination of both for my kids, with so much being attributed to the exceptional education that they are receiving at our Montessori school.
Good luck to all researching educational pathways for their kids - I absolutely think Montessori education is phenomenal. From a psychoeduational perspective, it is very good for most kids as it's based on skill based learning, and not being forced into a classroom because of your age, where all kids are forced to do the same work. Montessori acknowledges that all kids have different brains, and they teach and present work in such a way, that many kids thrive. We have special needs children all the way through to very gifted children at our school, and it is a great experience for most of them. In our neck of the woods, we have several exceptional Montessori schools, and most of us teachers can pick out the Montessori graduates as they are quite bright, love to learn, and are pretty independent from a very young age.
I would urge all parents to research all educational placements, but please don't discount a certain program just because some adults you know don't like it. Many people I know hate Disney World, and so what would happen if we all used that knowledge to not enjoy Disney World for ourselves!
Tiger