My impression is that he mostly offers a psychological critique of people's individual and social neuroses arising from ideological preoccupation, and encourages people to refocus on more basic/fundamental and personal psychological needs. This might be typified by something like: don't spend all day trying to fix the world, when it's more urgent to fix your own life and relationships. It just seems like simple parental type advice.
Perhaps, if someone is more familiar with him, could you please tag me with something which exemplifies why Peterson is so talked about. So far, the little content of his I've seen just sounds like the kind of things my parents would say.