Pros: -Good color out of the box
-Bright, 350 Nit
-IPS
-Constant 59/60 Hz in daily use, 2k video, gaming (via DisplayPort)

Cons: -Limited/confusing onboard picture settings, better to use Acer Display Widget
-Slight ghosting during web-browsing, text scrolling (but not gaming)

Overall Review: Rig: i5 9600k, 2X8Gb @ 3000Mhz, RTX 2070 (DisplayPort)

Certainly one of the best price-to-performance 2K monitors you can find (especially because it goes on sale often). It lacks the customization of a more expensive dedicated "gaming" monitor but has a pretty good color profile out of the box. It also has that quirk that a lot of higher-res monitors have when scrolling text and/or web browsing you get slight ghosting effect, however during gaming and video playback it is very smooth.

BOTTOM LINE: Higher resolution and/or refresh-rate monitors need the proper hardware to get the maximum performance. I would recommend using DisplayPort, a recent-gen CPU with at least 4 cores, and a GTX 1070 or higher.

Pros: Precision, clarity, reliability. Let's say everything.

Cons: Not possible to ajust height.

Pros: The price is right.
It's sleek with almost no bezel.

Cons: Heavy.
Resolution claims are a little misleading.

Overall Review: Will only display 1080p at 50hz through display port, 1080i at 60hz through hdmi. This was no where in the documentation or the store page that I could find. It took me 3 hours of googling to find the answer. It only supports 1080p/1440p @ 60hz over DVI. They lose 1 egg for the poor hdmi/dp support and another for burying that info.

Edit: After a little over a year of ownership.
Subtracting another egg. Monitor has started ghosting like crazy. Anything image with high whites has started causing crazy image retention. For example. In the time it takes me to update this review, a ghost copy of this new egg page will "burn in" and be visible as a ghost image for from minutes to hours.

Pros: No dead pixels
Nice colors out of the box
BRIGHT
Easy OC to 75hz with no issues
Good buy at ~$200

Cons: no freesync
speakers are trash (emphasis on trash)
the stand doesn't have much movement and sits low hurting my neck. I recommend a VESA mount.

Overall Review: The newer version of this is a great buy and sometimes goes on sale for $230ish (Acer V277U). I originally bought this with the intent of it being a secondary monitor but came across a good ultrawide deal so this is now sitting on my spare desk unused.

Pros: Low blue light mode

Cons: Image quality is poor, even after adjustments and using different cables, computers and Operating Systems

Overall Review: I've tried in different computers, different OS, different cables, and different connection methods (HDMI, DP, and adapters to USB-C), and there's always poor image quality

Pros: Solid value
Simple and streamlined appearance
Has all the features / inputs an average user could need
Buttons / menus work well and feel quality
FINALLY a monitor that has enough brightness adjustability! My last one was blindingly bright even on the lowest setting. this one goes quite a bit dimmer which helps my eyes not get tired in the evenings.
Easily VESA mountable

Cons: The stand could use some improvement, but it's not that bad.
It feels a tad bit on the heavy side, but according to the specifications it's about average for a 27" monitor
If it was 75Hz it'd be the best monitor on the market. Haha

Overall Review: Very very happy so far with this monitor. It is a huge upgrade from a 24" 1080p Samsung that I had been using for 5-6 years. This is a perfect option for people who aren't interested in 4k but are looking for a really good mid-range 2k monitor. Setup was a piece of cake and the picture looks excellent.

Pros: Nothing

Cons: The monitor looks nice with no visible external damage, but it is completely unusable due to extreme flickering, with checkerboard and other patterns rapidly flashing across the screen.

Pros: Good amount of screen real estate at maximum resolution
Very bright
Had no noticeable light bleed at edges and corners

Cons: Gets VERY warm compared to my other monitors when running
Could never get my black values where I wanted it even with proper screen calibrations
Monitor stopped detecting any connection made through DP after only 1 1/2 years where as my much older monitors are still working like the day I bought them

Overall Review: I would not feel comfortable recommending this monitor to any of my friends, family, or clients as it has proven itself to me to be a product that will not last at least
Would only recommend if you can get it new for less than $100 as there are MANY MANY other better options at the same price range or even lower