I will start by saying that this is my second Dell Ultrasharp. The first one I ordered was the U2312HM, about £70 cheaper than this one. However I was really disappointed with that monitor, the anti-glare coating was horrible, noticeable back-light bleeding and the edges of the panel seemed like someone had applied a permanent drop-shadow to monitor (photoshop users will know what I mean here).
I reluctantly ordered this more expensive model, however unlike the my first experience with Dell, I am very pleased to say that this monitor is perfect.
Build quality is superb, the stand is rock solid, adjustability is amazing. The monitor has a heavy duty "look" to it, but at the same time very easy on the eyes, the rounded corners are a nice touch.
I was really worried about the anti-glare on this since I couldn't stand it on the U2312HM. I don't know if I was delivered a "dud" the first time around but the anti-glare on the U2412M is much better. Everything is crystal clear, obviously it still has the slightly "dusty" look but I'm not joking when I say that looking at the last monitor made my head spin. I found one of the major complaints in reviews was mostly the anti-glare coating Dell uses, this monitor I believe was only released a few months ago so maybe they listened to the feedback. Anyway I'm too small a sample size to confirm that Dell is using better Anti-Glare now so take from that what you will. Moving on...
Picture quality is brilliant as expected from the ultrasharp line of monitors. Colours were great out of the box, however I did notice that the image was ever so slightly "cool" but I dialled down the blue a few notches and now its perfect. Obviously I will still have to use a professional calibrator to make sure I get spot on colour (my work one will go missing for a few days tomorrow...).
The other thing that really strikes me about this monitor is the 16:10 ratio. Unfortunately manufactures are in a crazy fad of producing 16:9 desktop monitors. While it's great for TV and gaming, it makes no sense to sacrifice vertical space on a desktop monitor. The 16:10 ratio on this monitor makes working with images a dream, I sit about a foot from the monitor and all I have in my vision is my work.
As you probably can tell I am very pleased with this monitor, I would highly recommend putting up the extra cash and get this over the cheaper U2312HM. To be honest at the current price point it's a bargain for what you are getting.