My kids have benefited greatly from it.
Sadly, their peers' religious instruction is as bad as mine was.
Same here. My parents initially started us on the the Baltimore Catechism, but then dropped it, deferring to the lesson plans of the (liberal) CCD teachers. I learned nothing after that. Not until I discovered websites like Catholic Answers. I've learned a lot there. I ought to just go back to the Baltimore Catechism and read it.