I think coinbase is one best exchanges to buy crypto assets and hold them in their wallets those are considered most secure. Coinbase is one of the oldest exchange and has its branches in USA, Europe and many other regions. It is a listed company on Nasdaq exchange of USA where its stocks are traded. The exchanges in USA are regulated by SEC who monitors their functions and makes sure that interests of share holders and investors are protected.
Yes I also agree that there is no question about that Coinbase is one of the best centralized exchanger. But with the passage of time, there are many better exchangers is came. I'm saying about Binance ,they are leading now . I would like advise others that they can do fixable staking on Binance so that we can earn some interest with holding.