Pretty good.... so far.
I received mine yesterday and I've been using it now for a couple of days.
First impressions...
Negatives
Bad Backlight Bleed:
A large "cloud" of it against the bottom of the screen, just to the left of the "DGM" logo and a small amount in the right corner. I can reduce the size of the larger "cloud" by squeezing the bottom bezel.
Screen Not Level:
I mean that it doesn't sit square on the stand. The bottom right corner is 5mm nearer to the desk than the left corner. I have tried detaching and re-attaching the stand but it makes no difference.
Positives
No dead pixels
No buzzing noise when displaying certain web sites. (As used to happen on my Hazro HZ27WC)
Easy access to the inputs. The Hazro required a certain amount of cable bending to connect the DVI.
An OSD (The Hazro didn't have one!)
None of the BIOS display issues reported by some people.
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I will not make the mistake of posting a premature review on the OcUK web site as I did with my Hazro HZ27WC, only to see it "crash and burn" a week later. (Well that's a slight exaggeration purely for dramatic effect. It actually went out with a whimper.)
If the DGM lasts longer than the Hazro (3 weeks) then I may consider it.
Overall I am reasonably happy.
Shame about the backlight bleed but I would prefer that to dead pixels. That's why I won't take the risk of swapping it under DSR, just in case I end up with something worse.