What is Coinbase Commerce?

Could you please elaborate on what Coinbase Commerce is and how it differs from traditional payment platforms? I'm particularly interested in understanding how it facilitates cryptocurrency transactions for merchants and if there are any specific benefits or advantages it offers over other payment solutions. Additionally, could you provide a brief overview of its features, such as integration options, transaction fees, and security measures? This information would be highly valuable for merchants considering adopting Coinbase Commerce as a payment option.