This is one of the biggest problem regarding reviews in general I think. You never know which standards the person with the comment has. I currently have the XL2411T 144hz TN panel from BenQ. I switched to a 21:9 IPS panel with 60hz from LG and gaming felt really unresponsive, but the colors and so on looked kind of better or different? Going back to the Benq opened my eyes that I do not want/need the color accuracy but the higher hz and faster response time. Granted we now have IPS 144hz panels with 4ms gtg response time, so you might want to try them out in person. I will leave you with this review:
http://www.hardwarecanucks.com/foru...ell-s2716dg-g-sync-gaming-monitor-review.html
Personally, I am waiting on a project to make my final decision if I will go with the Dell 2716. I was thinking about going 21:9 3440x1440 144hz with display port 1.3 later this year, but I think I will wait until the background lighting uniformity is in a better state on larger screens. I am far from an expert regarding display tech, but reading reviews of models 27 inch and upwards in the "normal" price segment, there most often seem to be problems with uniformity etc.
Edit: Oh yeah, and definitely look through the net for an icc profile and settings from other users.
Edit2: Does it say 21:8 above? I swear I am typing 21:9. Now it works.
Edit 3: There is a calibration option in Windows giving you several options regarding contrast/text. I never did it for the past 10 years (don't know if it was available back then), but it surely made working with so much better.