Why do some people hate it??
Despite it being more useful now (please see my post above), I still hate the touch bar because:
1. I have to look down on the keyboard to use it. I don't like to do that.
2. Assuming I'm okay with having to look down on the keyboard to see which keys I'm hitting, it's very hard for me to see the touch bar because it's at an angle, and in an effort to save on battery life, Apple dimmed the living daylight out of it. Pun intended.
3. And that leads to #3: it sucks battery life just being there.
4. This is no longer the case with the 16" MacBook Pro, but the Esc key was gone. Tapping the Esc key is not the same as hitting an actual Esc key especially if you work with code and the terminal a lot.
5. A lot of apps still don't support it, effectively meaning either I force the function keys on only when I execute those apps and then have to switch back when I don't, or the touch bar is going to be 2/3 blank in those apps and essentially become detrimental to productivity because those apps still support shortcuts that involve the function keys.
6. It takes multiple taps to get to full music control. It takes at least 2 taps to adjust volume or brightness. Etc... you get the idea. With a regular keyboard, you get instant music control, brightness, volume, etc...
7. Pet peeve, but... with it being on top of the keyboard, which sits pretty far away because the trackpad is huge now, I always have to reach for the touch bar when I need it. Not a problem for me but my wife has complained more than once. She has since inherited my MBP 13" now and she complains about it... a lot more.
8. The fact that my wife complains (very regularly now) about it makes me hate it. Put yourself in my shoes and you will see why you will come to hate the Touch Bar too.