1) A software update can now render you unable to make payments.
2) You're only able to pay people if you've bought one of a few specific pieces of hardware.
Traditional payment cards suffer neither of these problems which is probably why Google's planning to offer this... but overall it sounds like this is just adding more complexity into the already mindlessly-complex payments infrastructure.
So we know who the anti-Google-at-all-costs is in this particular thread. Why don't you stop spreading misinformation about it when you clearly don't understand the current Wallet offering or the vision for it?
I'm not anti-Google, I just don't see how their product adds value to the equation in any payment scenario. I use and like a lot of their offerings. But I'm in the payments industry, know what can and does go wrong, and would never touch an offering from a company notorious for being so hard to get in touch with (unless you're giving them tens of thousands of dollars in Adwords revenue; even with our paid apps accounts I have no idea how to get the support we pay for)
The remaining one stars are users complaining about lack of support on various android phones.
So looks like people are really interested in using it but can't get proper access to it, those than can do like it,