Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Baby won't take this bottle

I had heard great things about Avent and received this set as a gift. My son hated these bottles, the nipples were huge! He immediately took a bottle that had a Nuk nipple on it, and we have never had any problems with him taking a bottle since then. I have heard from several other mothers who had the same problem with Avent bottles - before you buy an entire set, make sure your baby will take this bottle.