I run a 2017 MBP with the second butterfly iteration and stories online have me worried that any day will be the last day of my keyboard.
So far it works very well and when I went back to my 2012 MBP to find some old files, I noticed I vastly prefer the new keyboard.
TouchBar however is the most useless thing ever. I absolutely never ever use it unless I need a FN key. I mostly forget its there...