I bought this from Amazon about a week ago. I'm using this as my primary display with a 2013 Mac Pro. I have two other monitors attached as well. I'm very happy with it and would buy it again BUT. This is my second monitor. The first one had problems recognizing presses to the touch sensitive buttons on the lower right of the bezel. At first I couldn't get it to turn on because it did not sense the "On" button. (Yes the hidden switch in back was On.) After about a day, it stopped recognizing touches to any of the buttons and I requested a replacement from Amazon. By the time the replacement had arrived 4 days later the first monitor had failed more dramatically. The screen would not display and every time I connected it to my Mac the Mac froze. Not even mouse moves were recognized. I called Seiki for information and help on the first day. The people on the phone (I tried twice) had no information. "We know nothing about this because it is a new product." BUT new products are the ones most likely to need help! I was told the only detailed help was by email. 5 days later, after I had already returned the defective monitor, I received the following from Seiki: The five "buttons" on the front of the TV are touch sensors and do not require any force to use. They should function with just a light press. 1) If any of the buttons are not working, try resetting the TV by powering it off completely. To remove all power to TV, press the power switch on the back of the TV. Leave power off for a few hours or more to completely lose charge. 2) There is also an option to do a factory reset on the TV, but this requires the use of some of the buttons. So you may not be able to perform this reset: While monitor is completely powered on, press the Power and Menu button at the same time. A service menu should appear on screen. Select the "Factory Reset" option using arrow and menu buttons. 3) Make sure that you have no devices near the monitor that may cause electrical or magnetic interference with the monitor. If you continue to have issues, you should return the item to the retailer. **** You all may find items 1 and 2 useful if you have problems. Item 3 is very upsetting. My monitor is on my desk with lots of electrical devices of all sorts and some are only inches away. If this is really a problem then the Seiki SM40UNP has some serious design problems. However, I suspect item 3 is just a CYA (cover your a..). The replacement monitor has now been in use for 3 days. The touch control "buttons" seem to work about 75% of the time. It this gets worse, I'll be exchanging this monitor for a third. Both monitors arrived in boxes that had been taped shut. I'm not sure if this means they had been previously opened or not. The cables were in sealed packages. I'm not sure if the monitors themselves had been open or not after leaving the factory. The protective packaging for both monitors had some tears. The second monitor was missing a screw on the back panel. I took a matching screw from the first, defective, monitor to replace it. Because of the menu touch control problems I had some difficulty switching both monitors from DP 1.1 (as shipped) to DP 1.2 (needed for 60Hz). Eventually I accomplished this.