Our catechism group uses Faith and Life. We are not part of a diocesan program. Our group is more of an “independent” group of Catholics ranging from homeschoolers, Catholic schoolers, and public schoolers. It is a wonderful series, but I find that it’s difficult to get through the entire book for Catechism ( I teach First Communion). It’s used in one of the independent Catholic schools in our area, and they can finish it as they have class every day. I’d still recommend it though, but all the teachers should thoroughly go through the book and pick out which chapters to cover in most detail, and which to cover quickly. Perhaps, I find this because I teach a Sacrament class.
For my own children, we finish up their books/workbooks over the Summer. I’ve learned so much!!! I read their books cover to cover as soon as they get them.
As puzzleannie noted, once the kids hit 3rd grade, the texts get more difficult. They do seem to be a bit above the grade level recommended. The teacher’s manuals are very good at providing more indepth explanations if needed.