The arrow keys and touchbar make that machine completely unsuitable for writing code, at least for me. My right hand needs to unconsciously lock on to the arrow keys, and that's just impossible with that layout. There's nothing to grab on to. My new iMac keyboard sits in a drawer collecting dust solely because of the arrow keys.
And the butterfly mechanism is unproven and untrustworthy, I don't care how many times they update it.
They need to go back to using the same keyboard mechanisms for both their desktops and laptops, and they need to go back to the old arrow key layout.
I will wait another year until 2020.