I know people who sent their children there, they were satisfied. The general consensus on Montessori method is that it is better for the earlier years of schooling. My son was in a Montessori school (the one in Los Restauradores) for second grade before we moved from the capital and he loved it.
I don't know just how Montessori this particular school is - some are Montessori in name only - which does not mean that it is not a good school in its own right.
