[alonmower]

As jodah points out, it was attractive for me because at minimum I have a credit card, an ATM card, and a parking benefits card. I also have additional cards that have better benefits for things like gas/groceries so it's nice having the flexibility to choose to use one for a particular transaction.

That said, my experience with Coin was abysmal. It worked maybe half the time, when it did work it took the cashier and embarrassing number of swipes while I stood there wondering if it would work at all.

When I wrote in to support they said that there was a certain set of POS machines that the card wasn't recognized on. At that point Coin becomes completely and utterly worthless because I now have to carry the other cards in case it fails. If someone made a card that worked in 100% of the places that I can currently use an ATM or credit card I would get one in a heartbeat. The fact that Coin claimed to and wasn't even laughably close to delivering on this makes me hate them