In my opinion, I prefer Metamask wallet for the use of trading activities on decentralized exchanges on various available chains such as Ethereum, Binance Smart Chain (BSC) or Huobi ECO Chain (HECO). Thats because the use of a metamask wallet is more universal, but for security we must keep it our private key. And for Coinbase, I prefer to use it for storage my investment token or coin, that's because Coinbase wallets and exchanges are centralized, maybe it will be more secure because of the security system managed by Coinbase. So in conclusion, we must have both types of wallets as a storage place for investment coins or coins that we will trade on a decentralized exchange or centralized exchange.