It was pretty damn great to live in a country ruled by a dictator who organised the most effective anti Nazi resistance in Europe and brought stability to a region with a long history of ethnic conflict. Yugoslavia made huge steps forward under Tito in terms of infrastructure and industrialization. Huge amount of natural resources, beautiful mountains, a coastline and 4th strongest army in Europe.
Although I was just a child when Yugoslavia split up (11 years old) I have great memories from it and same goes for my older family members. We had everything and more. A brand new apartment, car, country house in Bosnia and a summer house in Croatia. It wasn't fancy or anything but we were happy. Everyone got along. I cant remember anyone ever talking about religion, nationalities etc. You could travel whenever or wherever you wanted to - the Yugoslav passport gave you the ability to work abroad and travel freely to most countries. Now I can get killed in my hometown because I have a Serbian name.
Of course the country and the system had its shortfalls - main problem was trying to balance the interests from republics such as Serbia, Croatia, Slovenia etc which obviously failed once Tito died. It's pretty interesting that there were something like 200 delegations from 127 countries present at his funeral.
All in all, I would trade it back in a second if I could.