As an alternative to the fiat currently used by ordinary high street shoppers, it's clearly a failure. As a decentralized currency, it's beginning to show signs of failure, or at least strain. As a currency with a genuine free-market value, it's also currently a failure. As supposedly rapidly evolving, dynamically responsive piece of software, it's failing.

But as the "Model T" of altcurrencies, and as the harbinger of a global economic, social and political revolution, it is already a massive success;
it is The CyberChrist