Yeah I have an S8+ and aside from feeling like you have the CIA in your hand, the finger print sensor on the back of my phone suggested more than one fingerprint for it's database. I've never been arrested but now my fingerprints are in some database somewhere
Samsung Pay is cool though. All my credit cards are in my phone now and I just wave my phone over the credit card machine NFC reader at the store and I'm paid up. It works in every store I've gone to the last few months. Happy about that