Communism sounds great because it's a lot like heaven will be... The problem is that here, on earth, when we put people in the place of God, you have a severe lack of knowledge coupled with a proclivity for being corrupted by evil, which makes communism a disaster.
Discussion
Nothing about communism sounds good to me, not even the "real" utopian communism that has never occurred. So if that's what heaven is, I'll pass.