We love the foundations and philosophy. My wife set up our house according to the Montessori approach of making everything accessible for the kids.
Our oldest- She did fine at Montessori but we noticed that she would never push herself or be pushed - per the method. For example she would only go to the shelf with puzzles that she could easily master. It wasn’t a competitive environment and she thrives on that. She moved on to regular Kindergarten and is doing well.
Our second- Same problem as the first - but this was a bigger issue because he was far behind his developmental milestones and needed speech and occupational therapy just to get to Kindergarten.
Our third- She was born for Montessori. She loves independence and is the most capable two year old I’ve come across. She’s the only one who uses the Montessori set-up(s) at home that my wife made happen.
Our fourth- Still a baby - we shall see