I am living in post Soviet times, but if you mean in a totalitarian regime in Russia pre USSR, during USSR, or post USSR they all sucked, be it Trotsky's terrible decisions which, had he been appointed as the head of state after Lenin's death would most likely have led the Soviet Union to war against western europe, including Nazi germany, years ahead of time and united them all against the Soviet union, to Stalin destroying crop yields due to bureaucratic inefficiencies to be charitable or a genocide similar to what happened in Ireland or India in the 1800's due to profit extraction and to quell popular uprisings. And those are just pre WW2 events, that doesn't condone any of Tzar Nicholas 2nd's terrible decision making but the Soviet union was doing at the end of the unions existence what the US government is doing now, allowing for seniority to rule leaving a less vibrant and more entrenched political elite who doesn't need to deliver anything to the people to keep their power.

If you want communism to work you can but only on small scales like Kibbutzs or Co-ops where the workers actually own and control the means of production in a meaningful manner, but the Soviet Union, or any other communist government by name has people who don't know the intricacies of how a certain field works dictating not only regulations but quotas which are only truly fulfilled on paper. Also I find it rich that people who support anti colonialism and think America or Israel have done some bad ethnic cleansing, to put it mildly in America's case, ignore the continual Russification of all places Russia can, be it in Romania, Ukraine, Georgia, Kazakhstan, Hungary, or even within its borders in areas which had a large non Russian population more similar in culture to Mongolians; they did it during the time of Ivan the Terrible, Katherine the Great, when they took Saint Petersburg from the Sweeds to have a Baltic port, under all the Tzars, but not just them under Lenin and Stalin Russian became the de facto language of all nations part of the Warsaw pact and they suppressed other languages, that's why Crimea doesn't have the Tartars anymore for example. I would not like to live in a Russian occupied nation until Russia has true democracy and reduces its corruption issues, these issues having been in place since they were part of the Kievan Rus, and didn't go away under the Soviet Union.