I have back issues and always need a pillow to support my back so I can feed comfortably. The One Z eliminated the need for more pillows. It is fuller than the other nursing pillows I have used which helped keep baby in a more comfortable position. My older children also like it because they are able to hold the baby, properly supported, without a pile of pillows around them as well. We like our One Z pillow and wish it would have been available when our older kids were babies!