You can just leave those settings standard, but whenever you get a new monitor be sure to set it to your personal tastes. And I would go with a different monitor, do you like this monitor? http://www.newegg.com/Product/Product.aspx?Item=N82E16824005419
I happened find this thread
and the first post mentions several tweaks to "improve" the viewing experience. Are those irrelevant at this point or is it worth tweaking the settings?
Unfortunately, I'm not very fond of using 27" monitors as I had a bad experience with Asus PB278Q. The screen was too big for my use and the PWM flickering really got me so I returned it straight away.
23~24" monitors are the right size for me atm and maybe later if I'm interested in bigger screen, I'll get one.
More so, I have looked at various 23" monitors and those two are the best that I could find which closely meets my needs (with Eizo Foris FS2333 being the second).