My issue with Wallet before was credit card rewards. Everything came across as a generic category so say my Amex higher % cash back at grocery stores didn't register properly. Hopefully that is corrected now that the banks are in on it. If so I'll be all over it.
I got into this a few weeks ago as well. Mine was threw an easter egg hidden on one of their site pages. It was in the middle of a work mess so I only ended up ever completing 2 of the tests. You do have the option of logging in via google account so I'm sure they already know allll about me.