Basically monitor choice can be divided between superior colour/image quality in IPS or superior fluidity with 60/120/144/etc TN panels. As a gamer/multimedia user with no interest in 3d at all I chose image and colour quality of the dell ultrasharp and do not regret it, as you're only going to be getting much over 60fps with an expensive dual card setup if you like to crank settings to max, and the colours/quality of a TN is going to be *nowhere near* this. Not recommended for solid FPS gamers however as a sole monitor, even a good 60Hz TN is visibly faster and smoother if you're prone to noticing these things.
It's also 1200 pixels vertically, none of that 1080 malarky, much nicer for a PC screen.
With large screens viewing angle is also important, TN just are not suitable for larger upclose displays, they look hideous with weird colour shifts all over the place. IPS monitors like this dell have hugely reduced issues here to the point I don't notice it.
The build quality is excellent, the menus very easy to use, connectivity decent (a nifty USB hub but no HDMI, easily solved with an adapter), the stand is fantastic and the monitor has a VESA mount capability. Reasonably thin bezels too, useful if desired.
Only 4 stars because mine has 2 dead pixels near the edges (now named Tyler and Marla), very hard, even impossible to notice most of the time but still taking a star away, it's a £200 monitor afterall, not some cheap tat. Yes I could send it back, but getting upset over such a tiny thing just isn't cricket.