There was not much diversity of implementation across (within) the Soviet Union - the whole of it was governed by the party and the plan - but of course there have been other experiments with Marxism in other countries. You are absolutely right that the issues raised in this video can be explored, if not answered,by looking at the differences between these countries and the experiences in each of them.Were there priorities different? Did this affect their policies? Did it affect the outcome - the level of freedom?