I haven't touched the new machines, but they aren't inspiring, though the black option is really nice to see :)
I haven't touched the keyboard, which it sounds like they changed. I really like the one on the generation I have, and I also like the wireless model that Apple came out with. Anyone know if it matches the wireless keyboard? Cause I like that one, short throw and large quiet key movement.
In terms of the touch bar, eh, I really like the idea of having thumbprint access to the computer. I hope this is accessible to other applications. As a developer I'm minorly annoyed at losing function keys for certain tasks, but maybe I can utilize it to create custom keys and icons in different contexts, which could be really cool.
Otherwise, while it doesn't offend me, it's definitely not worth upgrading to. But IMO, like this article, it's still the best Unix OS based laptop on the market (yes I know it's XNU, but it's 100% posix and full BSD subsystem, which is better than windows' posix mode and Linux veneer).
Anyway, while it isn't better than my current machine, it is thinner and lighter which are nice haves, and I might actually like the new keyboard.