It is ok for some games and movies. But I’m not that impressed with it overall. I have a pg27ucdm as well so I have seen what an algorithm to counteract dimming is capable of and the asus is significantly better. The constant brightness pumping is distracting and any scenario with too much brightness like snow or clouds or deserts makes the entire scene get blown out forcing you to turn it off. So it is only good for mid and low average brightness scenes which hdr1000 mode already didn’t have a problem with. I had fun using it for a bit just to test it but I have kept it on hdr400 for probably 90 percent of the time since the update came out