If your assets already sit at Coinbase, staking them takes one click and the underlying validation is competently run with no client losses on record. That is the entire case, and for many users it is enough. It is also, in fee terms, one of the worst deals in this category.
What the commission costs you
Take a nominal 3% network reward. At a 10% commission you keep 2.7%. At a 30% commission you keep 2.1%. Over five years on a meaningful balance, that difference compounds into a large number, and you receive nothing extra for it — the validators are not better, the uptime is not higher, and the assets are less safe because they are custodial.
Custody and regulatory risk
Staked assets remain with Coinbase, so exchange failure risk applies on top of protocol risk. That risk is lower here than at most venues given Coinbase's audited public accounts, and it is not zero. Regulatory risk is also live: Kraken's US staking programme was closed by SEC settlement in 2023, and Coinbase litigated rather than settled.
Concentration
Coinbase operates a large share of Ethereum's validators, both for its own staking product and as custodian for institutional clients. That concentration is a network-level issue researchers regularly flag, and delegating more to it adds to the problem.
Who should use it
Users with small balances who value one-click simplicity over yield, and nobody else. For anything meaningful, a professional operator or liquid staking protocol keeps substantially more of the reward in your hands.