Jason Snell, Six Colors:

To balance out the design, the Touch Bar’s OLED screen doesn’t extend all the way to the left edge of the glass. As a result, the Touch Bar always appears inset from the rest of the keyboard. It’s a bit weird. Fortunately, it appears that touch sensitivity extends a bit past the end of the display itself—when I tapped the corner of the Touch Bar, reflexively reaching for the Escape key, my touch would still trigger that key—even though my finger wasn’t actually touching the part of the Touch Bar displaying the virtual Escape key.

(It took me a few days to get used to the presence of the Touch Bar. Until then, I found that my pinky would slide off the carat key and make contact with the Touch Bar, triggering the virtual Escape key. I’ve trained myself not to let my finger stray up into the Touch Bar accidentally, but it was an adaptation.)

And:

The Touch Bar is an animated interface through and through. Items don’t just fade in and out, but also slide smoothly back and forth. The arrow pointing from the Touch Bar to the Touch ID sensor during a request for an unlock grows and shrinks, practically begging you to put your finger down. There’s a lot more personality here than I expected.

This is a good read, with lots of pictures and the video embedded below. A review worth reading.