Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pretty Good

I like these bottles, they are the only ones my son will accept right now. After trying everything from avent to gerber these are the ones he uses best. In the beginning the nipples are closed so nothing comes out i found. All i did was stick something through the hole so liquid will come out. YOu can stick it through too far or it will leak, but you can do it just enough that it wont leak and the baby gets milk.My baby still spits up, but not as bad. And we dont have the problem with collapsed nipples like we did with the Gerber New Traditions and Gerber COmfort Hold... I tired the Natural SHape Ventaire and my son didnt like those... He was suckign really hard and nothing was coming out, even after trying to "open" the nipple hole.. But thats ok.. He still loves these ones!