I wonder about the Dell UP 2414Q also. I looked it up on B&H after someone above recommended it. There was one weird comment/review from someone that said it makes the text appear so tiny that they only use the monitor for photo editing.
Why would that be, and is it nonsense? Supposedly if you set the text size super large to compensate it then messes up on website layouts.
Actually websites are one scenario where you don't run into any small text or formatting issues ever (with the one exception being Chrome which is a terrible browser which also recently broke color management again, all they care about it trying to win meaningless speed tests on blog comparisons, Chrome appears to force one to either interpolate everything, even text, up from 1920x1080 or leave text tiny; Firefox, IE and Safari have no such issues at all) whether it's MAC OS or Windows Vista or newer. You just set 200% scaling in the OS for Windows or HiDPI for MAC and you incredible text that is 4x crisper than before with everything placed exactly as before, there are no formatting issues whatsoever. It just places every last thing in the exact same place as before but simply renders 4x crisper text and interpolates images up 2x in each direction (images might look a trace softer on the web due to that interpolation though) unless it's a rare site that has HiDPI support and gives you ultra high res images.
But it's awesome to browse websites and have all of the text look like it's not computery digital text but like you are reading text out of a book/magazine. Text looks so much better on webpages.
There are programs where the alignment ends up a but off in Windows, but mostly they are still usable and, if you must, you can tell the OS to render them as if they were 1920x1080 and then interpolate up, that's a bit fuzzy due to interpolation but it lets you get things not super small if the normal 200% without interpolation ends up misformatting so badly that it's unusable. With what I use it's not really been any issue for me other than Photoshop CS6 (the new, rental model, which I hate and have so far refused to fall for Photoshop CC scales 200% fine) leaving non-menu text and icons super small, but I live with it, I know where all the icons are and just lean in for a second if I need to see that stuff better. Lightroom scales 200% UI fine on MAC or Windows. On MAC even Photoshop CS6 scales HiDPI UI fine.
Windows 7 and 8 scale the desktop itself better than Vista (which spaces icons too far apart and does a sloppy job of the desktop itself's scaling). MAC OS scales all fine if you set HiDPI mode. On some MACs you need to run pre-Mavericks and hack the OS to enable HiDPI options because Apple seems to want to trick people into getting new hardware or something. But I was able to unlock HW support for UHD 30HZ (30Hz isn't ideal, but all I use my MAC Mini for it's fine enough, my main box is my Windows box, I just do App development on the MAC Mini really) and full OS HiDPI scaling even on my older Mac MINI through OS hacking (they seem to have locked out the hack on Mavericks so I have not upgrade to Mavericks or later yet).