Two customers said in their reviews that it had good picture quality.
Two customers concluded that the product had good colour saturation. Duncan Ransom said on Amazon “Blacks are black, colours are eye-popping (in a good way!), refresh rate, for a 4K IPS panel is great (60hz), so even moderate level gamers can use this”.
One customer considered that the LG 31MU97 had a wide viewing angle. Basspig scored the product 5 stars and said in their review of this PC monitor on Bhphotovideo.com “Perhaps this is their first IPS panel and the reviewers came from TN panels, so were not used to good black levels and a true 178 degree viewing angle”.
One owner who purchased the product concluded that it had a flickering image. Eric mentioned “One has constant luminance flickering” in his review of this PC monitor.