What is Coinbase pay?

Could you please elaborate on what Coinbase Pay actually is? I'm quite interested in understanding its functionality and how it differs from other payment methods in the cryptocurrency sphere. Could you explain its core features, such as how users can send and receive money securely using this platform? Additionally, I'm curious about its compatibility with various cryptocurrencies and whether it offers any additional benefits or incentives for using it. Thank you for your time and explanation.