I liked it - particularly the volume and brightness controls, and for convenient hotkey access in apps that I didn't use too often to memorize. But it was extremely badly implemented and then basically abandoned. At the very least, it should've never replaced function keys.
Touchbar is very fun to use, that alone makes it a great feature (thanks to mountains of work done to get amazing integration across system and many apps)
It's sad to see all that work going to bin.
Did you know that you can get touchbar on ipad that you connect as a second monitor? Excellent way to keep it alive, except, oh, it does not work, unless you drag the window to the ipad first... I mean... Somebody went and designed it to work like that, on purpose...
From the security perspective, having some UI that cannot be controlled by apps (a led, a touchbar, whatever) is very important for signalling app privilege levels. oh well
