I received the Dell Ultra Series monitor on November 11th, It was not to my liking, there was a white light emanating from the background that washed out the colors. Unfortunately, that light which was part of Dells "super comfort view" could not be turned off and no amount of brightness, contrast, color temperature or adjusting the Gamma on my Nvidia video card could help.
I sent it packing on November 14th, received my refund on November 18th and ordered another monitor, a Dell S2421HN monitor that Dell had on an early Black Friday special for 129.95. After using all my free Dell money, total cost out of pocket was a whopping $2.80. It is a better all-around monitor and the "comfort view comes turned off as default. Colors are deep and perfect. Sometimes cheaper is better than most expensive, lesson learned. Absolutely loving my new but much cheaper monitor.