Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Super Fussy!

I decided to try these bottles since they are BPA free and supposedly work like the Vent aire bottles. At first I thought they would be just fine but we experienced extreme fussiness and I was able to deduce that they made my son very unhappy. I'm not sure what the problem was he liked the nipples but for some reason every time I had him use those bottles he would get really upset afterwards.