Simply put, it's not just a cushion! Most other products are static. They are made from foam, gel, or air that does not move. The longer you sit on them, the more uncomfortable they become.
Because it moves, many people assume the Ease Cushion is just another massage seat, but there are important differences. Massage seats use vibration or a kneading mechanism to target sore muscles. They are not comfortable to use for extended periods because they do nothing to address a different source of pain; unrelieved pressure.
The Ease Cushion intermittently redistributes the weight of the user to different areas of the seat. This allows circulation to be restored as blood flows into tissues which were previously compressed.