though I have not used either. As I recall, Curriculum Services will spend time on the phone with you and set up a plan with you that suits your child. That is, you might have various grade level texts for your one child. I don't know if Calvert does that - I think if you sign up for 5th grade, you get all 5th grade books. But, I've not looked into Calvert since I began homeschooling 7 years ago, so that may have changed. The people I know who have used Calvert have been extremely pleased with it.
