This seems like a good 2nd monitor to have if you're a gamer. It looks like it would work just fine for gaming but it's missing features like GSync or 120+hz that would elevate it to true gaming levels.
My 4K HDR TV has ruined me from gaming on my ASUS 144 Hz TN gaming monitor. To me, the reduced motion blur doesn't make up for seeing jaggies everywhere (24" 1080p) and the muted color reproduction. This BenQ monitor would be more tempting if it were QHD or 1080p at 21 or 22" and supported Gsync.