My first MiL was wonderful, admittedly her DS came first as an only child, but she was very supportive of us, furnished our first home and was a lovely grandmother to my DS. She died far too young when a hip op went wrong and she died of sepsis. I still think of her on her birthday fondly.
My second MiL was a strange lady, just didn't take to me no matter how much I tried. Her ex, my second FiL was lovely, he truly loved his son, my second DH. He was very helpful when the second DH got ill. We got on well.
With both MiL also, if their sons, my husbands, fell out with them, I would make sure I got them back talking as soon as possible.
A man and his mother should always be talking, seeing each other. I think.