I have had the 50 inch version for about six weeks. For programming and office work, I love it. It's basically the same as having 4 24" 1080p monitors put together- just without the bezels. I was worried that the 30hz refresh rate would really bother me, but it's not really noticeable. I'm not sure I'd want to play games on it though.

How much did that set you back? And how far away from it do you sit?

I have 2.

Beautiful picture but it's 28hz @ 4k. This causes a "lag" between the mouse and cursor that is completely unbearable for me (not a gamer, I'm talking just web browsing / email / coding), and I've pretty much stopped hooking them up. Try adjusting your display settings to sub-30hz to see what it feels like.

To be fair that is a limitation of HDMI 1.4. You'd have the same problem if you bought the ASUS PQ321Q and connected it with HDMI.

Personally, I'd never buy an HDMI anything...DisplayPort is the current standard and the future of displays.

The problem with that display is that it's only 30hz. Any movement on the screen looks terrible.

i want to know this as well!