Fail... so far
I mentioned this same thing in a prior thread... IMHO ISIS may be their own worst enemy. If _consumers_ don't know/us the system it WILL fail. One look at their website will show you that they have not targeted consumers at all. Next to no info for consumers and not even any way for consumers to contact the company (all email addresses are for merchants and the media). The person handling their twitter account is also clueless. The thing that ISIS has is that it's payment system has "offers" tied into it. I think this is a great draw. However, you'd think with their _big_ release that they'd have an offer from some vendor. Nope! Nothing. Nothing says, "We are now open" like hiding in the shadows. Yes, they give out $10 (and another $15 for adding any amount to the account) but unless you offer some info to end users and even instruct your merchants that they have the system, how do you expect it to catch on?
The map of merchants on ISIS's website is terrible! It lists 10 merchants from the center of the city and ever new page you load, it branches out. But this is in all directions. So it can easily take you 20 pages to get 15 miles away from the center fo town. You also can't perform any search... not even for certain merchants.
ISIS has had an extra 18 months to ramp up their game. I'd expect that they would have set up even a basis support system. Instead it's like it was thrown together in a week.
ISIS is piggybacking on the fact that Visa and others are creating some nice incentives for retailers to accept EMV. I don't know about MasterCard (I forgot and am too lazy to Google it this second), but I know that Visa's EMV incentive program ONLY applies if you accept both contact and contactless EMV.
EMV is the future, the US maybe the last developed country in the world to go to EMV - but the benefit of that is that card issuers and networks are insisting that both contact and contactless EMV are supported here. In other countries, only contact EMV (almost unheard of in the US but expect that to change, big time, over the next year) is widely supported. Here, it's nothing - but it will be both.
ISIS and Google Wallet will work anywhere contactless EMV is supported and MasterCard works (for Google Wallet which presents itself as a virtual MasterCard, I don't know how that works with ISIS - since ISIS only allows specific cards it's possible it passes through the card as-is?). It doesn't need merchants to know they accept it *IT'S JUST ANOTHER CONTACTLESS EMV CARD* - what it does need is a whole heck of a lot more support for contactless EMV. And that's coming.