Why is Coinbase so successful?

Could you please explain why Coinbase has achieved such remarkable success? What factors have contributed to its popularity and success in the cryptocurrency industry? How has Coinbase managed to attract so many users and maintain their trust? What unique features or services does it offer that sets it apart from its competitors? Additionally, how has Coinbase responded to challenges and evolving trends in the crypto market to maintain its leading position? I'm curious to understand the secrets behind its success.