Works great but has a few shortcomings. I've had no serious issue with mine, and the build quality is high. No dead pixels, no malfunctions. I like the picture quality in general, with the exception of a quite noticeable IPS glow.
- Highly adjustable stand
- Build quality
- Picture quality
- Input ports
- Relatively fast response time for IPS
- No backlight bleed
- Well-placed powered USB 3.0 ports
- Slight backlight color tint (purplish)
- OSD menu and buttons are terrible
- FreeSync only works at 4K
- Cable management
- Quite bad IPS glow on a black screen
- Not as fast response as TN (normal)
It's a great monitor, though maybe slightly overpriced. It's way better built and reliable than the cheaper 4K monitors from LG etc with thin bezels. I think the wide bezels on the xg2700 are a positive thing because they protect the screen and reduce the chance of backlight bleed caused by bending and pressing the edges.
The color viewing angles are good. However, looking at a black screen in a dark room shows sever IPS glow. Most of the time I don't notice it, to be honest, but at moments when I think of it I'm quite annoyed. When you stand 30-40 cm from the screen in a dark room you can clearly see a black cross. The 4 corners are a lighter grey, When you move your head the pattern moves with you. If you lean back (60-70 cm) the pattern disappears because it's caused by the angle at which you are looking at the screen surface (and the angle is low when you are looking from further away). Really, most of the time I don't notice it. But when I do, it's annoying.
I tested another IPS screen from Asus (it was 1440p), and it had almost no IPS glow. However, the Asus one had terrible backlight bleed on the edges, which is far worse in my opinion. So the xg2700 wins this one, even though it's not perfect. Some reviews that I read on a few sites made me thing that this screen would be almost perfect, so I was very disappointed when I first turned on mine. So manage your expectations. Still a pretty good screen though.
It's relatively fast, but if you're planning to play a lot of games maybe a high-quality TN is better. The picture on IPS screens gets blurry when objects move at a constant speed (if you do quick moves in a 3rd person shooter you may not notice this).
What I don't like is that the backlight color feels kind of purplish, while would I prefer a warmer yellowish tint. Nothing wrong with it actually, still looks OK, but I don't particularly like it. Especially with the sRGB preset.
Another thing I don't like is that FreeSync only works with 4K. Not many games are playable at 4K and I was hoping that I'd be able to use FreeSync at a lower resolution, too, but to no avail...
The OSD menu and the buttons are terrible... Very hard to use the touch buttons in a dark room. The menu is very old fashioned. There's no easy way to quickly change the brightness, you have to navigate a few steps in the menu. (you can save user presets though, but those also save your input source. So in case you saved them on HDMI, you can't use them on DisplayPort etc).
I don't like the natural sRGB colors setting (with the factory calibration). It might be more natural, but I prefer the more vivid colors that come with the "panel native" preset.
The USB ports provide a lot of power and charge my phone relatively fast (not sure how they compare to a good wall charger, but they are definitely much faster than my computer).