If you already have the monitor then it is a pretty good gaming monitor. It has 1080p which is pretty standard but good a good LED panel and 5 ms response time which is also pretty good. Overall it is a good monitor if you already have it. However, if you want to buy it still I would suggest picking a newer monitor as the M2250D is discontinued.
Hope this helps!
I already have it. Its good but i wanted a different opinion rather than mine. Thanks. By the way I didnt buy it from store. Some friend of mine had a friend that stole it from a storage room and sold it to me for only 50 euros. The monitor costs 130 euros on Greek stores.