Not me, but my wife did. Through 5th or 6th grade, I forget. She has very fond memories of it, and hated the transition into traditional school. Her account is that once she got there she was a) appalled at being expected to sit at a desk all day listening to teacher's talk or doing worksheets and b) bored as hell because she was significantly further along in her own education. Worth noting that she ended up at a pretty bottom of the barrel public school.