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.
Its good for your online transactions but still banks will stat and they will continue to offer services as usual because fiat money is still needed and many are still hesitant to adopt cryptocurrency and Bitcoin. Regulation is preventing Bitcoin from taking its full capacity and we cannot blame them for doing this because Bitcoin is a big threat to the bank and that is the thing that they cannot accept easily.