Dell UltraSharp U2715H

I've been using 2 x 27" 1440x2560 (Dell U2715H) for 2 years now. (Dell monitors are typically a pretty safe purchase in this respect as all the mid range ones seem to come with rotating stand.) I've been very happy with this setup, and I've no intention of changing. It's a good aspect ratio for editing text and viewing PDFs and whatnot, and makes very efficient use of desk space. My 2 portrait monitors are only about 12 cm wider than one landscape one. I also don't understand why more people don't use it - but perhaps people try it out with a 1080p monitor, find it a bit cramped, and decide against it. (I used 1200x1920 monitors for a while, and the screens always felt a bit too narrow even with that. A lot of programs and sites seem to assume you've got a monitor that's at least 1280 pixels wide, so you end up with extra scroll bars, cramped UI, or stuff that's simply inaccessible.)

I've always called those '1200p' monitors, to differentiate them from other similar screens. I have a pair of Dell U2415's (and U2715H's) on my desk and they're fantastic screens.

I've tried them but far prefer running triple-head setups (since the days of Xfree and CRTs). Triple-head is pretty easy these days and gives you one central monitor plus one either side to chuck windows onto. Current set-up is 3xDell U2715H for a total of (2560*3)x1440 (and 10 workspaces). If you are going wide, consider vertical resolution/vertical size as well (to minimise swivelling side to side).

I recently got a Dell UltraSharp UP2516D, it's great, also because I stay quite close to it. At work I have a Dell Ultrasharp U2715H, I stay like 10 cm further away. I don't see much difference even if one is 25" and the other is 27". I can not recommend them enough, my macbook air's display seems tiny now :D