Most other pressure cookers require you to flip the pressure weight/steam cap to a different position to release all of the pressure that was created while cooking, making you more susceptible to scalding or other heat-related injuries.
Automatic steam release means that you do not need to manually release pressure from the cooker at the end of its cooking process by adjusting the pressure weight—the cooker automatically releases all pent up steam and pressure from the cooker at the end of cooking cycle or throughout the last few minutes of the cycle (depending on the function that was initiated). This feature was crafted with the intention of making the pressure release process more safe and more convenient!