Good attachment will help a baby get more milk and make breastfeeding more comfortable. This video shows why good attachment is so important to breastfeeding success and what a mother can do to deeply attach her baby to her breast.
This baby is drinking very well at the breast. The pause in the chin as the baby opens his mouth to the maximum, just before closing his mouth, indicates his mouth is filling up with milk; the longer the pause, the more milk the baby is taking in.