They are all so far the 2015 AUO IPS 27" 1440p M270DAN02.X panel including EIZO. The EIZO is so much not worth it's price it costs over double of the cheaper models and you get quite similar panel lottery with any brand including EIZO.
I've tried 3 XF270HUAs 2.6 borderless, overall they have minimal BLB but glow can vary, no dead pixels but one has many many bright parts of subpixels and IMHO Acer is dumping failed QC panels into the freesync variants and keeps better panels in the Gsync variants that cost a lot more.
Nixeus as far as I know uses the same panel 2.3 with border as PG279Q but with hopefully a better plastic frame to avoid too much BLB. Does it work or not, check this thread I suppose and reviews elsewhere. There have been the same amount of complaints about Nixeus as about other branded monitors based on this AUO panel. There is no silver bullet. None of the brands has any extensive QC, maybe EIZO tries but then you pay double the price.
All monitors for quite some time are a lottery when buying, so be sure to have an easy at best free return option. Same reviews as seen on .com or any other site apply to what you will find sold in EU, it comes from the same factory.
Unfortunately Nixeus is doing the same mistake as Acer and offers their reasonably priced M270DAN2.x only in western part of EU where people are more likely to pay more for a Gsync variant while central and eastern probably northern and southern too are left with no options other than the expensive variants. They go after the easiest, biggest, most wealthy markets, UK and DE, leaving everyone else dead in the water, unfortunate. And reshipping to work around these brand region locks adds additional cost and hassle.
If you get dead or bright pixels or obvious bleed etc., well that's an easy return. Sadly a lot of these M270DAN2.x panels suffer from yellowing, some have worse angles and increased glow, poor color temperature uniformity, etc. some people are willing to tolerate these issues, some not. And there are many more odd issues you can have, mistakes within the panel that shine bright, cracks/scratches, and so on.
There is nothing else much you can choose either, the new Samsung 27" VAs are possibly even worse QC wise. TNs have crazy 1.8 gamma by default, made for different gamma curve or something, some can be OSD tuned to 2.2 some not.
If you can roll a dice a few times on the Nixeus EDG 27" I would say go for it. Or other of the cheaper variants unless you can find say Acer XB271HU/HUT at a good price or used, this is the model I see people settling with in the end when they can afford it or find one that is decent.
There may be an updated version of this panel from AUO in 2018 but probably not sold before the end of 2018 as production is rumored to start now. Maybe Nixeus knows more but probably can't say anyway a thing about future products of theirs or of AUO.