i did a years montessori training after ds1 was born... dont have much experience of actual montessori nurseries as there arent any near enough to us for me to have sent the boys (now 1, 2 and 3), tho i wish there were.
i dont buy every single one of her theories, and i do think that the world is generally much more child friendly than in the time in which she lived... but i have much respect for her approach and think that she spoke a lot of sense about a lot...
theres a lot of misconceptions about montessori. and crucially i suspect, a lot, of nurseries with montessori in the name which do not interpret the 'method' properly. or do so in part - and im not sure how well it 'works' to do some of it and not all... all down to the individuals running and teaching in the individual places i expect.
for eg - they are not allowed creative play?? not true. tis true that there is much emphasis on truth and reality; out of respect for the childs developing and learning mind, the real answers are given to questions, not simplified or cutesy ones...
Maria montessori believed that children under 6 could not tell the difference between fantasy and reality, and so they deserved the truth as fantasy would be misleading.
and she believed that to tell a child fantastical stories was to fill their heads with other peoples fantasies and imagination, rather than to allow the child to develop their own imagination, based on a real and solid understanding of the world and reality, which they deserved to have so that they could move on to bigger and more complex questions...
i dont think i do it justice really, but just wanted to post.... that at the end of the day, you need to go to the nursery and check it out for yourself. ask a lot of questions, maybe even read up on the philosophy forst and like all things parenting related; trust your own instincts and judgment.