Update: connected to old Mac mini via HDMI and it works fine, but still no display from USB-C connection to MBPUpdate 03/01/2017

Otherwise I'm fairly happy with the monitor - the display is good, colors bright

An excellent display, with good picture quality, brightness, black levels, and responsiveness.

Amazing display

This is a marked improvement over the older Dell 4K display I replaced with it

Installing the drivers that came with the LG monitor itself corrected the flicker and resulted in the beautiful display that I love

The hope of a useful displaying of two sources fell short and is disappointing

Everything just works as advertised, including:* Beautiful 4k display

The 5K display has better image quality due to its higher resolution, but I like this display because:* It's subjectively more attractive

Here comes my rant:- Super bright, blinking white LED sleep indicator light - the display is NOT suitable for bedrooms or dark environments

But the display is excellent when used at its native resolution

Otherwise a good display with sharp text and bright colors

Absolutely stunning display

It is one of the most comfortable displays I have ever used

Monitor connected correctly when initially connected, and was a great display

So you are getting great display, sleek design, and highly energy efficient

When I don't move the display looked great, but moving gives me a headache.

The aesthetics aren't as nice as my old display, but even the monitors that Apple sells now are made by LG and aren't even as nice as this one.

As if designed for maximum distraction, the automatic standby screen is some black text over a jolting light-gray background (it should be a dark background like most other displays on standby).Waking the display is cripplingly slow; it always takes 5 to 10 seconds to display anything (including the display's own UI for switching inputs, etc.).I use the display for both a Macbook (USB-C) and a PC (DisplayPort)

The display is scratch free and does not have any stuck or dead pixels

This is a great display!

I don't agree with the other reviews saying this display isn't ideal for a MacBook Pro

I'm tempted to give this a lower rating just to draw attention to what I believe is a design flaw that - while not affecting a LOT of people, it's just dumbfounding as to how LG can design such a BEAUTIFUL monitor and screw up something that has been a problem for years