Son of an INTJ father and ENxP mother. My parents have been happily married for over 25 years now (and counting) and raised myself and my older sibling. My sibling became an extrovert (took after my mother) where as I took after my father.
As a father, he was great and his knowledge surpassed any other people that I know of. Unlike me, his emotions were well developed and he would show them quite easily and readily, which I found odd as I generally don't show emotions. In his office, children of my dad's colleague used to come and learn Maths and Physics from him (his strongest subjects, did honors) for their University course, and even though he hadn't touched any books related to those fields in like 20-30 years, he could flawlessly remember everything and would solve any problem you throw at him. This was astonishing because I tend to forget things quite easily, and I wouldn't remember formula's after 2 years if I didn't revisit them frequently.
Hmm as a parent he was very nice to me. Gave me my freedom, and never made me change to someone else. My mom tried to make me change into a more outgoing person who liked friends, and didn't liked being alone, but my dad was like "you are you. Embrace your uniqueness". As a son, I have no complaints. Both my parents have been beyond awesome, and even though I had a sad life, I never felt sad at home because they were there for me. My home environment was very warm and cozy; contrast to the outer world haha.
I don't know if he liked children or not, but he used to tell me always "it doesn't matter if you like something or not. If its your responsibility, you just have to do it". Hence, myself and my sibling were his responsibility and he took good care of us, even though he probably didn't like it (I used to annoy him a lot as a child). My mom did the childwork when I was younger as my father would be away, but as I grew older (and more mature), my father started taking more care of me than my mom. My father wouldn't abandon us kids as we are his responsibility, and sometimes we have to do things even if we don't like doing them.