Great? Maybe not. The best we've found for economic development and continued economic growth? So far, yes.
All systems have strengths and weaknesses. All economic systems require intervention to prevent bad actors from exploiting them. If you think communism doesn't, it's because you aren't actually familiar with it.
Again, I highly recommend that you read about twentieth century USSR and China, especially the early days of Mao, Lenin, and Stalin. Because you don't seem very familiar with communism for someone named after Karl Marx.