Pretty Good for the Price
After previously using an IPS 4k monitor, I switched to this monitor to get better response times for gaming. I barely noticed the difference between the two monitors in terms of response time (if at all), but clearly noticed a difference in image quality between this monitor and Acer's B276HK, which is an IPS panel. That being said, the image quality on this monitor is fine, and for the price I bought it for ($240) this monitor was an excellent deal.
I have purchased multiple refurbished Acer monitors, and both of the 4k monitors I purchased had bent mounting prongs on the stand. This is the only flaw I found with this monitor (no dead pixels). Simply using pliers to bend the mounting prongs back into place allows the monitor to be mounted.
Verified purchase: YesCondition: Refurbished