I’ve had it for about a month now.
It’s prettier, more aesthetic, nice shadow effects.
The start menu is more functional.
Most likely many features I have not encountered or concerned myself with.
I agree on those points. OTOH, it's a computer, not an artwork. Am I to hang my monitor on a wall, stand back, and just admire it? I use it for computer tasks, and I find complex pictures behind my task windows distracting. :-)
But I readily admit I'm an outlier in that regard -- most computer users seem to like complex pictures on their desktops.