Yugoslavia in the sense that the cultures were at an unlivable state with eachother without significant autonomy. Bad from an economic perspective as the resulting nations are weaker than what a unified yugoslavia would have been today when one looks at gdp projections.
Are you from the region? Yugoslavia has been a far richer and developed country than any of its successor states for a long time, and I hardly think most locals would see the cost of human lives and untold destruction the war brought to settle some incomprehensible ethnic conflict as a good trade.