I can only agree with the other 5 star reviews: I too have no halos, still shines through somewhere light, nor is anything else negative struck me about the processing.
Positive was said in the meantime enough, so I do not want to stay longer so ...
Now to the but ....
I am a 26-inch IPS (1920x1200, not LED) TFT switched to this one and I have two points noticed immediately after switching on:
Image Quality:
The colors I would estimate almost exactly like my old IPS (who was already a bit getting old), but definitely not as sharp on her image, but can also be located on the second point:
Pixel size:
At 27 inches and "only" Full HD resolution, the pixels are simply too big.
I mean, at a distance of about 40 cm from the screen you can with good eyes, and I really see good eye, pixels. Playing so falls on something, but reading that's stupid. I have now pushed the monitor specially still slightly backwards ...
My recommendation at this point:
Who only wants to gamble, yes, definitely buy.
Who but a lot of reading on the screen, which I would recommend to take a look before sample (MediaMarkt or so). I would not take it for fun and games, he probably would have gone back.
The monitor receives from me anyway 5 stars because it is a gaming monitor and solves this task with flying colors.
01/09/2014 EDIT:
Because here more and more people confuse the values again a quick update:
Most of the listed reviews and questions refer to two very different models but this TFTs.
Variant a)
Full HD resolution
144 Hz
with or without G-Sync
Variant b)
UHD resolution
always 60 Hz
only with G-Sync
In some questions, these values are jumbled. There are z. B. no UHD with 144 Hz as described in some questions!