I did for my elementary school years. They taught me basic Bible stories (and made us memorize Bible verses, which I disliked since it was just more work), and otherwise had a good program. Some of the teachers were very nice to me, it was just the kids that were mean sometimes. Looking back it was kind of strict but it wasn't all bad, although since it was in the south and cost money to get into there weren't many non-white children, not that they promoted racism or anything. The school was also connected to a church building so it was fairly large.