Though the 4K Ultra HD revolution is happening faster than most probably anticipated, the number of 4K monitors actually worth owning are surprisingly low. That's because of early growing pains -- low refresh rates (like 30Hz) without Multi-Stream Transport (MST) support, TN panels, and other undesirables have held the category back. That's why we're cautiously optimistic about the new Asus PB279Q, a 27-inch 4K monitor with an IPS panel.
Seems like a worthy contender to be my next monitor purchase.