I attended Catholic high school myself; very advanced curriculum, long days, lots of electives. Heck, I even skipped lunch twice a week to attend an elective art class!
Spent one year of business school and two years of college never cracking a book. I didn't need to. I had learned it already in high school.
Great school, great teachers, great principal. I'm a fan of religious education, despite all the pathetic movies Hollywood puts out bashing it. Made all the difference for me!