The unit has great bspecs but reviews have knocked it on picture quality.
http://www.displaylag.com/benq-rl2455hm-professional-gaming-monitor-review/
I am gonna echo the recommendation here and urge you to spend a bit more and upgrade to a 144 Hz Asus
http://bestgamingmonitorden.com/benq-rl2455hm-review/
The BenQ is $198 w/ shipping on newegg.... the Asus is $279 - 10% off w/ promo code MNTMEMORIAL11, ends 5/26 or $252 w/ free shipping so $54 more. If you are in Europe, look at the BenQ XL2411T ....same panel as the Asus better in some areas, worse in others .... main one being ghosting that some users experience.
http://pcmonitors.info/others/benq-xl2411t-vs-asus-vg248qe