For anyone but a CS pro response times are fine on all panels, yeah (VA and similar tech aside).
Can definitely tell the difference in contrast and colours and that though. But then very few panels are really pure TN or IPS, there's a lot of kinda hybrid techs that don't really fit in either category.
But yeah, I think unless you're buying at the super cheap end, a monitor is a monitor to a large extent these days. They're all good. Which is why they're trying to differentiate with absurd resolutions and high refresh rates and Gsync/Freesync etc..
EDITED: 4 May 2016 18:31 by X3N0PH0N