AOC U4308V 43" 4K UHD Monitor, 1+ Billion Colors IPS Panel, 124% sRGB/ 109% NTSC, 2xHDMI/DP/VGA, PIP/PBP, USB 3.0 hub, VESA, Speakers, White/Silver (Renewed)

Monitor worked fine at first. Looked okay and functioned fine but had quite poor contrast and muddied blacks and greys (not sure if this is due to a faulty refurbish job, or if it's just the monitor). Now after two months there are multiple purple vertical lines that flash constantly regardless of what is being done and what settings are applied in the monitor's display options. I am just a few days past my return window and am awaiting a response from the seller to see if they will make this right with me or if I wasted my hard earned money. For now, I would recommend looking elsewhere for a monitor that is new and not renewed. I will update this review after interacting with the seller and will share my overall experience afterwards.