It doesn't add any benefit to my experience. I'd prefer real keys that I don't need to look at. I could hit volume up/down easily on the previous models.

Using Terminal, I use the Esc key a lot for navigating and having a touch bar Esc key is not a great experience since you also don't feel feedback that you're touching the right key.

I've also accidentally hit the touch bar a few times while hovering one of my fingers above it as I press down on one of the number keys.