The place that I work at has a contract where they get AOC monitors, some low-end desktop, keyboard, and mouse from some company and we're always sending back the AOC monitors due to defects. I would guess that of the 400 or so that we have under warranty, at least 300 of them have had to be replaced over the last year. Some of the replacement monitors have also had to be replaced too though, so the number could be much higher. I still have to send at least one monitor back every single week. These monitors that need to be replaced from anything from: the monitor constantly shutting off every 5 to 10 minutes, the monitor suddenly becoming an ultra bright whitish color (can't be changed from the settings), the monitor just constantly flickering on and off like there is a loose connection when there is none, to them just not turning on at all. If I remember correctly, it's the 20" model that we use, but I wouldn't be surprised if the other models have these same shoddy manufacturing defects. I took a glance at the pictures, and it looks like they have moved the buttons from the bottom right to the upper left, they also look to be slightly thinner then the one's that I deal with, so these might be an updated model but I can guarantee you that I will never purchase anything from this company ever again, regardless of how affordable their monitors are or how quickly they are able to replace defective devices.
If you are looking for a good monitor, I would recommend checking out Dell or HP. I have been dual screening with one of each of those for the past two years and haven't had a single problem with either of them. I actually spilled beer all over the place recently, and it splashed onto my HP monitor pretty heavily and it looked like it soaked in there pretty well (the LED button changed colors for a few minutes) before I was able to wipe it clean and it still runs fine. I doubt the same could have been said if it was an AOC.