What does Google Pay do well? Google merged Google Wallet and Android Pay into one app. Its user-friendly layout and storage of rewards cards is something I like a lot. I use it for all of my payments. It even lets you add PayPal as your mode of payment.
What does Google Pay not do well? Initially there was lack of compatibility with certain devices or bank accounts. But they eventually sorted that out.
What do you wish you had known about Google Pay before using? I wish I had known about the compatibility before signing up. But this particular thing is not relevant anymore. Since they already took care of it.
Have you used a competitor to Google Pay? If so, how does it compare? Venmo is another thing that I had used but it charges 3% credit fee. And transfer limit is $2999.99 whereas Google lets you transfer till $9999.