Set it up yesterday evening, so I haven't been able to use it for photo editing yet. But here are some first impressions.
I already had a Spyder5 calibration tool, so I can't use the built in calibration (which requires x-rite).
It's calibrated nicely with my portrait monitor, which is an older Ultrasharp without the extended colour gamut. Both look similar (although new one is much better in every way, especially sharper being higher resolution), but the extended gamut is noticeable on the UP2716D. Kind of makes me want to get the UP2516D for portrait.
The UP2716D replaced a U2715H (gone to my dad), so I was used to the quality of Ultrasharp monitors.
The screen looks great - really good for the price. No noticeable problems, but I'll try to come back and update when I've given it some more use.
One thing that's very useful. I use two PCs plugged into the same monitors. The UP2716D has two upwards USB 3 ports. So I can plug both computers into the monitor and share the USB 3 hub. This means I can leave the mouse/keyboard receiver plugged into the monitor and it works with whichever PC is turned on. Same goes for the webcam, and wacom tablet.