Why is chia so good?

Could you elaborate on why Chia is considered so advantageous in the world of cryptocurrencies? Are there specific technological innovations or features that set it apart from other digital currencies? I'm particularly interested in understanding how its proof-of-space-and-time consensus mechanism impacts its scalability, security, and environmental sustainability. Additionally, how does Chia's approach to farming rewards compare to traditional mining methods, and how does this contribute to its overall value proposition? I'd appreciate a concise yet comprehensive explanation of the key factors that make Chia stand out.