Bitcoin clears and settles within a few blocks. Credit cards may reverse a transaction for 90 days.

The merchant could also let you leave after sending Bitcoin if the risk of double-spending was low enough (and network congestion was down).

Lightning Network will enable instant transactions without needing to wait for block confirmation, which is a true payments solution.

You don't need a globally redundant ledger to store your coffee purchases. The benefits of a blockchain over traditional financial systems is borderlessness and censorship resistance. Nobody is stopping you from buying coffee, why would you need a blockchain?

Expand from coffee to hamburgers, to gas station purchases, to groceries, etc, and soon you have ruled out a major percentage of the consumer economy. Not a deal breaker, but lots of hype for crypto is how it can replace fiat transactions wholesale or damn near it.

> The benefits of a blockchain over traditional financial systems is borderlessness and censorship resistance.

That's a subjective viewpoint. I might just want to earn my salary in Bitcoin and spend it, like a currency.