V10 owners.. How much better is the V20?

[cynth.hgn]

I find it extremely hard to understand how the V20 fingerprint scanner could be better than what the V10 offers running Marshmallow.

Put it this way. I have never been able to use a fingerprint scanner. Not on Note 7, iPhone. So far the V20 is the first phone that it works for me (I have rough hands )