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Your comment is hilarious, but as I deal with UIs a lot, the sheer complexity of all those knobs kind of astounds me that he can deal with it all, and in real time to make music. Wow. I've loved his music since the late 70's, it's great to hear it again.
Total guess, I've never seen one of these things in person, but: guessing that the knobs have some logical relationship to each other, like knobs in one row share a subject, and moving to a knob left or right changes the same thing, but more in one way than another way. Also, one reason I still like physical books is that when I'm looking for something that I've read before, I know it's on a left or right page, and w…
Is it a good interface? No. It's a terrible interface. Ironically it severely limits what you can do, because your arms are only long enough to reach a few feet - unless you wear roller skates.
If you need a module you don't have you can't complete a patch. You can only get more modules by buying them, and then they take up space whether you use them or not. They're priced somewhere between sort-of cheap and unbelievably insanely expensive.
When you make a patch, It's impossible to reproduce it with perfect accuracy. It takes a long time and copious notes to reproduce complex patches with imperfect accuracy, and any half-way complicated patch disappears into a mess of wires that's very hard to disentangle - conceptually, and literally.
I'm half a fan. I like some of the sounds, especially from the Major Name brands played by people who know what they're doing. But I also wish we could move on and start making software more interesting, more controllable, and better sounding.