My mother in law is a great lady -- Irish Catholic New Jersey farm girl, and no biggod nonsense about her. She's in her 80s and still active as can be - garden club, tennis, golf, church. We all love her.
My MIL and I didn’t get along all that well, but she made awesome peanut butter fudge for Christmas, and she taught my little one all kinds of card and board games when my ex had visitation. She loved her grandkids, and that was good enough for me.