After having a horrendous 8 months with my 2016 15" MBP including 4 Apple "genius" bar visits resulting in 1 completely replaced machine and 2 completely replaced top parts (bottom half with keyboard), the issue of sticky/semi-functional keys and Touch ID was still ongoing.
This past weekend, my local Apple Store gave me a complete refund to then use on a 2017 MPB 15" purchase, basically a swap.
I can already tell that the 2017 keyboard and Touch ID are much sturdier. I can't tell a huge difference with the new Kaby Lake processor, but I have not maxed out my CPU either.
It is clear that Apple is being pretty soft about taking back 2016 15" MBP's due to all of the issues that have surfaced. While a pain these past 8 months, I give credit to Apple for finally fixing the issue with a new machine.
Hope this helps someone out there.