> Speed? In the UK I can send money for free to any other UK bank account instantly. Not everywhere is as slow and expensive as the USA.

If you believe that all the world is really the divine right of the queen, I suppose sending payments instantly within the UK is more than sufficient.

> Uptime is legitimately amazing. But when you look at the computational speed - a Raspberry Pi on a UPS is probably more powerful.

Way more powerful, but practically useless, as 100% uptime globally is the requirement.

> Trust is great. How do you do a chargeback on a fraudulent transaction on Ethereum?

Blockchains completely prevent chargeback fraud by simply not allowing for reversal of transactions. You might not want this feature if you're buying a cup of coffee, but it's very important if you're dealing with large sums.