I really, really dislike the way macOS has looked since Yosemite, and compared to that, I think this one is an improvement overall. The icons have more depth, and there's far more use of color across the UI.
But, it also looks extremely mobile-inspired—I suspect Apple's primary goal was to make iOS ports and apps look less out of place. That's a fine objective, but it also means they weren't designing for desktop and laptops specifically, and it shows. For instance, most of the apps lack title bars, and I'm not sure where I'd click to drag windows as a result.