Trudeau is very extroverted, Harper is very introverted. Neither is bad. It is just who they are. And inevitably how they act or acted as PM. No one should be surprised. We can have personal preferences as to type we like as PM. Both have or had Canadian interests at heart as PM, according to their own perspective. 
I think the extrovert brings something valuable.
Too hilarious if those who criticize Trudeau for talking face to face with ordinary Canadians are the same ones who crticize him for so-called special access.