Global Shutter is not new, but new to mirrorless. It is great for any photography dealing with motion. It freezes the image rather than showing motion. It can also capture images much faster for a higher Frames/sec. It's biggest advantage to me is that it can sync a flash at shutter speeds up to 1/80,000 of a second! Some disadvantages are that it can increase read noise, somewhat eliminate motion blur when you want it and often needs a reduces pixel count.