It only lasted for exactly 3 years. Vertical black stripes came out of nowhere. I remember when they used to make more durable products. I will never again buy an ACER brand product as well as never again recommend someone to buy this brand. Don't waste your money.
PROS - Great value for the money - Slim screen (6mm thick) - Nice image quality and colors - The screen does not get warm after a long use - No ghosting while playing games
CONS - Besides it's 4ms response you can see ghosting when move the mouse against white background (web browse, read text on white background) - Uncomfortable monitor configuration menu - It show a little lack of homogeneity across the entire screen - It shows light leak when the monitor is totally black
Bottom Line: My version came with minimal but perceptible light leak, cool tone on the bottom left and warm tone in the bottom right. Of course this is only seen when the screen is black but it's not a deal breaker, you will not perceive this when you normally use the monitor. In general this monitor is a good purchase.
Update 1: After a few weeks of use I like this monitor but it does not have a true 178 viewing angle. If you sit in front of the screen there's is no problem but as soon you stand up you'll notice the degradé.