My experience with these monitors is bad and the seller is even worse.
I bought 3 of these monitors.
1st The colours were perfect, perfect whites & blacks, never seen anything so nice, it was whiter & blacker than my Samsung Galaxy Note Super Amoled HD screen, the colours were very vivid, I was impressed, however there was two big pressure marks, covering several hundred pixels.
2nd monitor, it's pretty good, it has only 1 dead pixel, which I can't notice, the colours are off, theres a green tint, there's no way to really get rid of it by adjusting the colours, it's never as good as what the first monitor colours are, basically after hours of calibrating you'll end up with a high res TN panel, no matter how you tweak it, there's going to be a tint remaining... Although you do get used to it sort off, if it was used as a single monitor with nothing to compare it with.
3rd monitor, It had serious green tinting, and 50% of the screen, left side: is darker than the other, with a couple of dark patches too at the bottom.
As you can see it's pretty bad.
I don't have the first monitor with the good colours to put up, it's in the box now, But I took one of the 2nd and 3rd side by side, (bare in mind, the 2nd ones colours are not that great, so the right side one is worse than it would appear in the comparison. I'm comparing bad with worse in the below)
This is after both have been calibrated to the closest possibly match, if I had a picture of the first monitor side by side, you'd see even the second one (left side) is terrible for it's tinting too...
Anyway, the seller agreed to pick up and replace the first monitor which had the purple pressure marks.
When it actually came to telling me when the collection date is due, he then tried to make excuses, saying actually it's not a manufactures fault, but DHL "damaged" it, even though the box was not damaged, it didn't look at all like a DHL fault.
About a couple weeks later, or so I got a phone call from DHL, wanting to know if the monitor was faulty, they was vague and not specific...
"Is the monitor you bought from China faulty?"
I replied: "The monitor I bought from SOUTH KOREA is faulty"
And that was pretty much it other than the hello's and goodbyes.
After I asked the seller what's going on, but all I got is delays, excuses, ignoring, etc.
Finally after almost 7 weeks, I get a reply, offering me 30 USD part refund, (originally he offered 40) Also stating that I have to return the monitor, he's gone back on his word that he would collect it.
So he's not an honest seller. green-sum
I don't know if the other sellers are any good, but this one is one to avoid.
As for the 3rd monitor with the 50% dark side, and overall green tint, (It's actually worse than my camera will show in the photos)
He said, you can return it, but if you do you can't return the other, you can only send one back, also he said, it's unlikely the manufacturer will accept the return, so I guess he's implying I'll have to pay to have it returned, and then pay some more to get the faulty one sent back to me...
Oh what's great now, the 3rd monitor, now keeps doing this.
It's like a coloured white noise...
Time for PayPal claims...
I have his eBay message for proof, one of the earlier replies.
Sorry for the delay.
We are making many inquiries to the manufacturer about this issue.
If you want a reimburse from my authority we can offer you $40.
From not getting any confirm, this is my limit.
If it is hard to accept, we will proceed a pick up service.
And give you a replacement.
And if you are going to purchase a second monitor we will ship it together.
Also for the replacement, we will check for every defects and send it to you.
After you decide, we will proceed the next step.
We will be waiting for your reply.
I agreed to his "pick up service"
I actually purchased a 2nd and a 3rd monitor sometime after this, he kept making excuses for the return, about DHL investigating etc, and I thought the first monitor would just be a one off fault, seeing as so many people got good monitors, so I didn't want to wait any longer, went ahead and bought 2nd and 3rd monitor in good faith, that he'd honour his email for replacement for the 1st.
Not only did he not honour his replacement and "pick up service)
He send me more defective items, and won't honour the return for these either.
So be careful buying this monitor, expect a fault, and if you're buying from green-sum, expect to have a horrible customer services, where he doesn't honour his own words.
I can't speak for the other sellers, from reading the forums, some people have had no problems with returns, others had... So I guess it's a risk, from whoever you buy from.
Good value for money if you want high res for a low price, very bad value for money if you expect an IPS or even quality of a TN panel...