GokhanAppleİnsider

Touch bar is worse than useless; it's a hindrance.
1) Adjusting the brightness and volume is too slow (two step process vs earlier one).
2) Siri button is too close to the fingerprint reader, making it very easy to activate by accident (my company uses the fingerprint button for authentication). 
3) Keys and functionality are extremely unpredictable from app to app. I just don't have the attention span to look at that (note to apple: my eyes are at the monitor, not at the keyboard... people don't look at the keyboard while typing).
4) I have big hands. Resting your hands on keyboard became impossible after the touch bar. I kept hitting random, accidental keys for a long time.

The best thing about touchbar is you can revert the keys' functionality to old fn keys! Yes, just turn the thing partially off and get some relief. That's about it.

The most horrible (maybe the only genuinely bad) Apple innovation for a long time.