I was born in a Kibbutz, it's a commune, read up on that, it ain't perfect, it got some issues for sure, but it certainly didn't devolved into a hellish nothing, it provided comfortable life to people, without real poverty or the threat of poverty.
And again, I don't want to get to the semantic discussion of what is or isn't communism/socialism, but let me be clear about what I am saying -
I don't think capitalism is the endgame of human civilization, I do not believe this is the best possible system. I do believe that people who identified themselves as socialists or communists had some good idea that can be adopted in today's society.
Let me give you two examples -
I think that a model where the workers own (in part or in full) the company they work for and get to enjoy a respectable cut of the fruits of their labor is generally superior to the model where companies are owned by rich investors who reap most of the benefits.
I think that the fact that there are people in this world who generate a whole lot of money without doing any work is problematic, and something that should be addressed.
I don't want a soviet style system, I don't think it's desired, and the practical steps I would take to achieve the two goals I listed (and others) are not likely to lead to a dictatorship or a hellish anything (I'm taking about mostly changes to the tax code).
Now, it's fine to argue against that, but I'm not sure what you can learn from the Soviet experiment, historically, there is really very little similarities.
And most socialists/communists argue (even in this very thread) that Stalin's USSR does not follow under their notion of communism (it certainly wouldn't fall under Marx's definition - communism is the post-scarce Star Trek like end game - a stateless, , moneyless, free associating society which have more in common with anarchists' vision than the soviet union).
Still, the East India Company is a product of capitalism, it couldn't have existed without it and such entities did not existed before it (and they started to appear almost immediately after Capitalism was born).
Now again, I like to stress that I think it's intellectually dishonest to use that example to argue anything and everything Capitalist is bad, I was using it as a counter point to arguing that the USSR is proof that anything socialism/communism can't work.
Though if we are to get pedantic, if anything, my example carry a tad more weight (though still, not too much) as you have serious political actors (or quasi-serious, depending on your political leaning) who advocate radical free market solutions that could in theory lead to similar issue.
Though once again, I don't think that line of criticism is particularly fair.