It has been working flawlessly for me as well, when I actually get the chance to use it.
Most often the stores around here in central PA, are using old enough POS registers or Pin Pads that can't even do NFC type payments. The ones that do, perfectly registers every time and are typically McDonalds or Subway.
As more stores update their hardware to accept NFC this will be a very common practice of using Apple Pay by many consumers and I love the convenience.
I'm actually shocked that somebody considers Apple Pay the primary use of Touch ID.
----------
Actually, my iPhone 6 has been nearly flawless. I've been pleasantly surprised because I've seen some 5S' have issues.
Hey guys this is a huge +1. I think we should look into this because I had a ton of issues with Touch ID on my 5s and it's perfect on my 6.