I live in a community with a very active Waldorf presence. I did not choose it for my children, but I think it can be okay for an otherwise typically developing gifted kid in the preschool years. However, you need to be willing to put up with religious stuff that is below the surface but very much there, and to be aware that there is a whole lot of dogma. The dogma was too weird for me, even though many aspects of the philosophy (outdoor play, natural materials, deemphasizing screen media) are in line with our family values. FWIW, I like our local Waldorf school director very much personally.
