I think ultimately history has shown that the Yugoslav line regarding market socialism was mostly correct and the split between them and the rest of the socialist bloc was a grave mistake from all sides involved.
I absolutely detest the great man-ism that clouds even communists' minds around this period. Tito probably never said badass things about Stalinist assassins or whatever and Stalin probably didn't personally want Tito's head on a spike. It was more complicated than what it's made out to be, and focusing attention on two Great Men instead of the ruling parties and material reality writ large does a disservice to historical understanding. It's everywhere, though.
The CPY/LCY shouldn't have split with the Cominform and should have maintained communication instead of running to the west/U.S. at the sign of any criticism. The Cominform should have addressed its Soviet-centric model of prescribed socialism and allowed for pragmatic differences in socialist construction between parties based on national realities while maintaining a sense of proletarian internationalism and socialist fraternity. As with the Sino-Soviet split, dogmatism and petty nonsense helped facilitate the beginning of the destruction of yet another socialist project that should still be standing today.
TLDR: Yugoslavia pretty good.