I bought this monitor from Amazon and I'm very happy with it.
I'd read a lot about the anti-glare coating which Dell has been using and which many people didn't like on its other monitors (eg the 27 inch version), as it was causing harsh refraction effects especially on all-white backgrounds such as on Google and MS Word applications.
But this monitor is fine. (NB It does still have an anti-glare coating with a satin finish so you don't see your own reflection in the monitor, but it looks ok.)
Everything is uniform, clear and crisp. There are no bleed patches in the corners which affected earlier models -- but obviously it's been fixed on my one -- which has a build date of November 2011. Colours are great. And I love the 16:10 aspect ratio, which gives you significantly more vertical space to work in, and it has a nice comfortable dot pitch. I also like the fact that the LED backlight does not get hot, and thus energy usage is very efficient. LED, by it's nature does not emit the U-V radiation that other light sources do.