The old UI is becoming a distant memory. All my apps are now in the very top row instead of below some kind of recommendations row that I never used. You can even re-order or remove the Play Next row in this new UI. And I even dusted off the gamepad to play some free GeForce games.
Safe to say I've gotten used to the new layout and no longer have the "omg I can't handle change" stick up my butt. I'm glad I just updated as soon as it was offered so I could get familiar with it.
I updated and really like it. I'm not sure how people were using the previous one but I found Oreo to be an upgrade and easier to use.