They just seem like a Carbon Copy of the Mafia, with the exact same roles except with different names and in a different color.
Most people apparently think that Mafia and Triad can't be together in a setup, because it's too OP. Since I'm yet to see this I can't clarify whether that's firmly justified or not, but I thought it'd be interesting to have a setup with all 4 "races". But I also did slightly understand their point. The Triad roles are all similar. I never see them in setups. They just seem to be a waste.