My wife, baby, and I have liked the the AVENT systems, first using the CLASSIC system then changing to the CLASSIC system. AVENT gets 5 stars from us.However, Amazon deserves 1 star for this category. It is way too hard to tell the difference between CLASSIC and CLASSIC here. As I write this review, the product title says CLASSIC, but the detailed description says CLASSIC . There are pictures of both CLASSIC and CLASSIC nipples. And some second-rate vendor is se..