My VISA card is not only a convenient payment method, it also forces ATM operators to give me cash without any extra fees. In Germany the EC card used to be THE way of paying with a card but you had to go to the ATMs of your bank, otherwise there would be sometimes pretty ridiculous fees. The kicker was that the fees were set by your home bank.
Add to that the ease of use online as well as in shops and it's easy to see that this is not going to be easy. I do root for them though, to do better than Wero.