I have had this monitor since October of last year, I am very pleased with it!
Pros:
WQHD IPS for less then $400!
Multiple inputs DP, HDMI, DL-DVI, VGA
Built in speakers
Great color
Decent construction
IR revciever
Cons
Not VESA compliant (input wise)
Defective power supplies are common
Short non-articulated stand
I got it from Microcenter, at the time it was $399. I have one dead pixel on the lower left corner that I have to search to find. I did have to replace the power supply after two weeks. I noticed the power supply was very, very warm, so I put it on the desk in a well ventilated area. Sadly that didn't help and on day 13 of my 14 day return policy I had to exchange it. Microcenter was cool about the exchange and even gave me a small discount. While I was there exchanging it, one of the sales guys told me they had a few of them come back for the same reason. The new power supply is barely above room temp, and I've had no issues since then.
The lack of VESA compliance is annoying but by no means an unsurmountable issue. Basically the monitor is hit or miss when it comes to supporting low resolutions IE BIOS displays, and system post. When connected via VGA everything works. DL-DVI would not show my BIOS POST or my bootloader but worked fine in the OS. HDMI was the same as DL-DVI. I hunted down a Display Port cable, and that works normally. I had these problems with my GTX 670, GTX 560, and my onboard Intel HD 3000. To be fair my U-Verse cable box, and Xbox 360 both work fine connected via HDMI.
Basically this monitor is great buy for the money, just do yourself a favor and pick up a Display Port cable with it, and you'll be as happy as I am with it!