I got a free bottle from a gift bag at a maternity store and when my son was born I used this bottle on him and it was a horrible feeding! It's supposed to be close to a mother's nipple but since my son had a hard time latching on, he couldn't get the hang of this bottle. Every time I tried using it he would suck for a few seconds then cry cause he wasn't getting any milk. I thought it was a burp or the angle at which I was feeding him, but as I paid more attention I noticed he was acting similar to the way he would on my breast. The nipple on this bottle wasn't long enough to stimluate my son's mouth to initiate the sucking motion so he would get frustrated and start crying. As soon as my husband would bring me a different bottle with a longer nipple, he would take it like a deprived child and would drink a whole bottle without any fuss. I ended up giving it to my friend who was nursing her daughter and she loved it! It's not the bottle's fault my son had a hard time with it. I think it's targeted more towards breast-fed babies who sometimes get bottles. I loved that it didn't spill the few times I did use it, and the bottle itself held nicely in my hand so I'm not going to give it a failing grade. I wouldn't recommend this bottle to non breast-fed babies.