I, myself, used Calvert being the child of foreign missionaries and it being the only thing that was available overseas. I especially like the history from grades 4 and up. But it is still "school-in-a-box" and you may have to supliment for your child's more advanced subjects. Also it only goes through 8th grade which is a problem for my 9-year-old who finished algebra 1 last year. I simply used an appropriate math text and on-line material for math. The rest of the grade level material was great. And like I said, that Child's History of the World for the older grades is really great. See if you can find it used on-line (cheaper) and try it.
