Is Coinbase a 'go deep go broad' cryptocurrency exchange?

Could you elaborate on whether Coinbase adopts a 'go deep go broad' approach as a cryptocurrency exchange? In other words, does it prioritize offering a wide range of cryptocurrencies and services while also ensuring a deep understanding and thorough compliance with regulatory frameworks? Additionally, how does Coinbase balance its expansion strategies with maintaining a secure and reliable platform for its users? Is it focused more on expanding its reach or on providing a specialized and tailored experience for its clientele? And lastly, what are some key factors that contribute to Coinbase's positioning in the crypto exchange market in terms of its 'go deep go broad' strategy?