There isn't really a single form of communist government, same as there isn't a single way to do democracy or capitalism. Every country does it different, experiments a different way. For all we know, the perfect way to do it is just waiting for us to discover.

For example, I'd say the US's form of liberal, bourgeois democracy is one of the worst ways to implement it, but it was also an early experiment with it and deserves credit for at least trying it and helping us learn what to do and what not to do.