I can boldly say that Bitcoin Banking is more reliable and fast because Bitcoin transactions is been done through wallet, the only problem that may occur is if the wallet is not correct another challenge is if the transaction is been encountered with down network but this is in rare cases.
The emergence of Bitcoin is to solve the problem of trust and security. For 14 years so far, Bitcoin has always been safe. If there is a problem, it is the loss of some mnemonics and keys on the wallet. While cryptocurrencies have been dismissed as scams or economic bubbles, there are human causes that go wrong. It has nothing to do with blockchain technology.