To me, Mac OS X looks so much better than todays Mac OS. It looks clear and orderly and I feel like "Great in this environment I can get some work done!".
Current Mac OS feels like "Help, I fell into a sack of candies, how do I get out of here?" to me.
Does anybody else feel like that?
Honestly, no; the parts of the UI that I see and work with are limited to the menu bar (just flat text, no embellishments), three dots and sometimes the Spotlight bar but I don't actively look at it unless it's slow. Same thing with Windows. I never work with the OS and rarely with native apps, it's all browser based and/or crossplatform applications that use third party design systems.
Everything after is a bit boring.