@claudiom My 6T arrived this morning... and I had a little bit of time setting it up and playing around... and _wow_. It's better than my 6P at literally everything but the camera and audio (both of these aren't bad; audio is mono though).
It's so fast, it feels better to hold (it's even a little smaller), and the stock ROM has a bunch of nice little touches.
Fingerprint is already at least as fast as on the 6P and sometimes a touch faster. It's supposed to learn & improve with time as well.