It has a "hard" anti-glare coating as opposed the the "soft" anti-glare coating of the HP LP2475W and the "glossy" NEC MultiSync 20WMGX2, my other monitors. Of the three treatments, I actually like the NEC the least (and it is/was a great monitor for the money). The coating on the HP is probably the best; however, I do not find the coating on the Dell to be objectionable. It is not nearly as dense as the coating on the 19" 4:3 Dell that my sister is using (don't remember the model - was new about 4-1/2 years ago).
I use these monitors to edit images using Bibble, Nikon NX and PhotoShop. Of the three, and compared to the $2500 Eizo a friend of mine has, I'd give the Dell 9 points out of 10, the HP a 9-minus and the NEC an 8. The HP and the Dell are really neck and neck. As versatile as the HP is, the Dell is more so. And -- I'm guessing because of its newer 12-bit panel -- an improved version of the same LG panel used in the HP -- the Dell's color calibration is nearly flawless (my calibration using an i1-display 2 sensor and the GretagMacbeth software - not that from the factory, which was simply awful).
pc-v600b, ss-860xp, max V gene, 3770k, 4x8gb ddr3 2400, i520 240gb ssd (os/apps), i520 480gb ssd (workspace), 2x3tb wd30efrx (raid-1) & i525 60gb ssd (cache), 2x GV-R795WF3-3GD, 2x u3014, leopold/cherry brown kb, g400, intuos5 pth650, win.7.x64.ult