We are currently doing Calvert 1st grade. I'm starting to think about next year and although Calvert has been good, I am thinking about maybe switching to McRuffy for 2nd grade. If I like Calvert, will I like McRuffy better? I think what my kids have learned with Calvert so far has been good, just curious how McRuffy compares. Do McRuffy users feel the curriculum is as good or better than Calvert? Is the curriculum more fun for the kids? Is the teachers manual easy to use? I would appreciate opinions on both curriculums, thanks.