I wouldn't use it.

It would be centralized, not truestless, transactions could be reversed and it could not be used worldwide, so what's the point?

You might as well just use FIAT then, there are no benefits for using crypto debit cards if you already have a bank account and a card. It would essentially be just an overcomplicated crypto>FIAT trading platform for users who intentionally give up all the major benefits of crypto.