It's always easy to make an outfit that goes together and makes a good impression. Men's Japanese and European fashion brands work well with this choice. I see this on the streets in Paris or Amsterdam fairly commonly, but rarely in the US.
I've found that it's very disarming and engaging; even though I'm over 6'3" and a big guy with a tight hair cut, I'm almost never perceived as a threat. I'm a natural introvert, but it seems to make approachability easier. Since having a kid, and him growing into a toddler, I think it helps there too. It's just more fun. Strong recommend.