Summary: I can only repeat what others have said. Yes, I could notice a difference in smoothness playing @ 120hz but the backlight bleeding was phenominal . Even with brightness set to zero it was still apparent. At 50% the screen only had to be a little dark along the bottom for the bleeding to become intrusive. And that's the point. It was intrusive. I say "was" because I have already returned the product after just 3 days.