The UHD looks REALLY different from regular HD. It's amazing. I chose this because it's got a narrow base, so I can set it on the fireplace mantle without having to mount it on the wall. It's a little wobbly, and we've had to gradually continue tightening the screws that attach it to the base.
The other factor in favor of this TV was how energy efficient it is. Love that.
It's REALLY lightweight, so we've moved it around the house a few times. Since there's no cable to attach, we can put it anywhere, and the light weight lets us take the most advantage of that.
The SmartHub interface is really easy to use -- not elegantly designed or anything, but simple and intuitive. It's got every app we could possibly want and way, way more. The setup was no problem.