Is he a nice guy outside of his political career?

yeah he is a cool dude...

If he wants to, he just grabs woman by the pussy. He says it is one of those perks of being wealthy. Maybe he will try it on your mother, wife or sister some day.
When some of his family members said something he didn't like, he cut off funding for medical care one of their children needed.
Trump reacts to POW's he doesn't even know, by saying he likes those soldiers who were not captured.
If a little old lady has a house on a plot of land he wants to use as a parking lot, he will attempt to use eminent domain to take the property for his own use.
He said in a memoir "Laziness is a trait in blacks. It really is, I believe that.” But he still insists that Americans are stupid enough to believe him when he claims he is the least racist person.

No, Trump is not a nice guy at all.

IDK. Don't know him personally outside of his public life, & neither do most of us. We know 'of' him & people that do know him personally, people who may or may not have a bias for/against him.