Talitha, apologies for taking so long to respond - perhaps you'd have received a lot more responses out in the 'public' area of this forum.
Be that as it may, I can only relate what I know of Wilgers from the experiences of friends and from observing their children: I have friends whose children attended Wilgers, and they appear to be healthy, well-adjusted children with good manners. Their academic performances, while not especially outstanding, has not been bad either, and the children appear to have received a well-rounded education in which all aspects of personal development were addressed, to the detriment of none. Most importantly, the children who attended Wilgers appear to have enjoyed their time there.
It seems that Wilgers produces (in general) a well-balanced/rounded kind of individual. To my mind, that is more important than a school that concentrates solely on academic performance, particularly nowadays when parents have so little time left after work to spend with their children.
I'm sure other people will have differing viewpoints - it depends, of course, on your own sense of priorities as to what kind of school environment you would like your children to experience.