30Hz is a dealbreaker. I will keep my 1920x1200 until I can have a proper 4K display. I really am surprised there are people who can tolerate that refresh rate on a desktop.
https://www.youtube.com/watch?v=4AClZklhqeA
Edit: Looks like crossflashing, may fix it. Testing now...
http://www.avsforum.com/t/1482611/review-of-the-seiki-39-4k-...