I went through 8 different bottle types in the first 2 mo after my daughter was born. I had problems with gas and burping. Nuk nipples were so small and slow it would take forever. Born free I tried because I heard so many great things, but the flow was so fast she ended up with terrible stomach ache. Same went for the Gerber glass bottles. The airvente was doable but the nipples are very flimsy and would bend over and she would play with the nipple with her tongue, and yes it leaked for me too. There were a few more that came and went including the Playtex bag system which I just didn't like to work with.
I started out with First year Breastflow with great intentions. In error someone purchased First year Soothie brand. The Breastflow didn't work, and many parts, but the Soothie ones really seemed to work. Very simple, wide neck, the flow is perfect BPA Free and you can buy 3 for $9.60 at Kohl's. You can also find them at Walmart I believe. I will note that the ones' that someone gave me I didn't realize until a month later that they were the 2nd Stage nipples. I have 2nd stage and 1st stage. Believe it or not she is ok with either one. Still slower than the Born free and Gerber 1st stage nipples.
