I am fine with it so far.
Another favorite application of mine went through a major U/I update a few years ago. Some people refused to pay for that new version, but most people got used to it fairly quickly, and most actually grew to prefer it over time.
I am assuming there will be some tweaks and fine-tuning over the next couple of releases.
I find myself looking having some "Where did that go now?" moments, but frankly, I had too many of them before the update, too. Overall I'm finding the learning curve for the new interface to be very small.
Addressing U/I and Font scaling is now the biggest U/I issue for them, in my opinion (and it doesn't even affect me at this time because I'm still using 1k monitors).