Most of the people would be excited by such a news but I'm not. I'm actually against everything that Coinbase does, they might be facilitating access to crypto and trading but from the way I see it, it seems like they are turning into a bank and that's something that shouldn't be found in the bitcoin scene.
Exchanges are exactly like banks. You don't own your private key and just depend on third trusted party, coinbase is a good exchange since they give good service for buying and selling. But it is not a good idea to store in exchanges since you don't have the full control over your fund. Even an exchange has a good reputation to trust with we are missing the point why Bitcoin is made which is to free us from thrid trusted party. It still best to choose a hardware wallet or an open source wallet like HODLER which also has retail feature to offer. Still, coinbase is good as exchange but not as a bank.