I've had a competitor's card for nearly two years now, and it's really soured my opinion of crypto-backed credit/debit cards.  If it gets implemented properly it could really be a convenient option, but the company I've used (BitPay) is absolute shit.  They charge you for the card, they charge two Tx fees to fund the card, the card is practically useless at 99% of the places I want to use it, and then I recently learned they charge a fee for every month you don't use it.

Unfortunately I don't have any dirty money to launder, so I'm more concerned about usability, practicality, and affordability.  Normally I would be willing to sign up for these kinds of services, but I'm not going to sign up for this one.  I'll wait to see how the service operates and if they get good reviews from clients.  Not to mention, Ledger hasn't exactly been great at keeping their customer's private information secure, and this will obviously require more critical data than just buying a hardware wallet from their web store.