The best overall monitor so far I've had in my life... but also the most expensive by far lol. Thank god I took a used one and paid "only" 720$ instead of the regular price of 900$, all that just because it didn't have the original box which would have gone into the garbage anyway, and because it said in the description (Small cosmetic imperfections on front bezels). However it ended up that there wasn't a single imperfection at all on the bezel anywhere but 1 dead pixel instead which honestly Amazon should have said, mostly also cause it's the main reason why people return monitors so that was a guess I took, knowing that at worst I could just send it back free for a refund.



My dead pixel is 1cm from top and 3cm from the left, so somewhere in the extreme top-left corner. I'm glad it is 100% invisible on a fully black screen or within normal PC usage. I would never have seen it if I wouldn't have used (Dead Pixel Buddy) and carefully check on a fully yellow, white, blue, green screen, cause it's a super tiny tiny red dot. I tryed to unstuck it with no luck but big deal, I saved just so much and something really nice is that on a 2560x1440 monitor, the pixels are much smaller than at 1080p so that's a good thing if you have 1 dead pixel somewhere ;)



Pros:

- 27in with the tiniest bezel you can find on the market. It's like 2mm plastic + 3mm black screen around the edge.

- Fully adjustable monitor in all angles, a true must which you can't go back without having these once you've tryed that.

- IPS instead of TN. There is yes a tiny loss in GtG speed but it's nearly imperceptible by anyone but the pickiest hardcore gamer. Anyway what's important isn't just the GtG speed but the COMBINED lag of the (GtG + Signal Delay) which is among the Top 3 as shown at TFTCentral.

- No backlight bleed, brightness is quite uniform, once calibrated the monitor looks really good and the text seems to be a little sharper than on my BenQ.

- G-Sync range is really great and useful at the overclocked 165Hz. Heck... even just moving the mouse cursor from 100Hz to 165Hz provide a huge difference! I have a dual-monitor setup and when I move the mouse onto the 60Hz secondary desktop, it feels so horrible and unusable! :o Ah and a very useful pro-tips as explained in a huge article at BlurBusters, you must activate only V-Sync only in the Nvidia Panel but also cap your frame rate 3FPS under 165Hz if you want to avoid the huge input lag from the double-buffering, trust me on this but anyway you won't get 165FPS in BF1 at 1440 on Ultra ^^



Cons:

- Ugly stand feets. It looks like some kind of transformer or kid toy. It is better than nothing but I preferred to use my (Arctic Z2-3D) monitor stand.

- The OSD of Acer is known to be quite crappy. At least you ain't really gonna go there too often. I've set a profile for G-Sync and another for ULMB however you must manually activate ULMB before as it can't be saved in a profile as it won't apply itself, so pretty much I just have a profile at (Brightness 20) for a perfect 120cd/m² which I use with G-Sync, and another at 100% for ULMB.

- ULMB isn't as good as (BenQ's Motion Blur Reduction V2) like I had on my previous monitor (BenQ XL2730Z) or from their newer (BenQ DyAc) which is not only 1-2ms lower but also BRIGHTER!

- It's not yet possible to use G-Sync + ULMB at the same time. I tryed the unofficial hack but it's buggy as hell so don't even think about it. Oh and ULMB's range is kind of a joke at maximum 120Hz. At least it can go down to 85Hz as my previous BenQ was only 120-144Hz which was way worse as it's impossible even with a GTX1080 in BF1 at 1440p to hold a constant 120FPS at all time without ever going lower a single second.

- Internal speakers are a joke... who the hell seriously use that? They should have removed that for less clutter and instead lower the price of 20$.

- G-Sync is much more expensive than Freesync for exactly no reason... just because it is the "Nvidia Tax". Can't wait for the next DisplayPort revision so that it can be free to everyone no matter if you are on AMD or Nvidia, and without the G-Sync module that nearly DOUBLES the price.