I actually don't know a whole lot about Catechism but I do know any systemized teaching can and most likely will lose its "life" within the first generation.
First comes the external hearing, then comes the internal believing. This is the order of Christian learning, because unlike many mystic religions, our faith is shaped by many revealed doctrines, not inward feelings. However, it is tempting to overlook our own process when instructing others. Once our instruction takes root, and our affections for God come into season, we feel it is our duty to condemn or despise formal religious instruction for othersI've used the catechism with my children as an excellent frame work to make sure the basics of the faith are covered. The catechism is like any other teaching aid, in that it helps us to not skip essentials and fundamentals. Using an outline to teach from hardly means that the instruction is by rote or uninspired. It just means that it will be structured.Furthermore, by combining historic tools with more modern conversational approaches in the instruction of my children I am able to give them a connection with their greater heritage as Christians.It is wonderfully true that many of us have discovered the difference between the formal religious training of your youth and our true conversions later in life. So dramatic is our awakening that we might be tempted to despise our years of external religion ...but I think we are simply becoming the fulfillment of Gods promise, "train up a child...and he will not depart from it." MC
Here are two that were recommended to me that are from a nonreformed standing:"Classic Catechism" by Russell, J. Veldman and "The Arminian Confession of 1621" by Mark Ellisthanks russ