We've tried sooo many different bottle types and these are by far my favorite (because they're my baby's favorite!).Originally, we wanted to use all glass for feeding and storing. That proved to be nearly impossible, we tried many different brands and they all had different issues. Too heavy, too delicate, leaked, too expensive, etc. These bottles are the perfect solution. They don't break when dropped, they're light and durable like plastic, but the milk never touches plastic. My baby has latching issues, and these nipples are more breast-like and easier for my baby to latch on to than other ones we've tried. They have a wide neck for easy pouring and cleaning, and since they are comprised of only 3 pieces (nipple, ring and bottle) washing them is so much faster than those gimmicky anti-colic ones that require scrubing with little tiny brushes.Pretty much the only complaint I have is that there seems to be a difference in threads, it seems to vary from bottle to bottle. We've bought several of these Chicco bottles from different sources (Buy, Buy Baby, Amazon, Walmart) and some of them can be screwed directly onto my Spectra pump while others do not. It is impossible to tell before purchasing whether they will fit or not, just keep that in mind if you're pumping (I'm exclusively pumping, and do not own a dishwasher, so having the ability to pump directly into a bottle makes a big difference in the amount of bottles I need to wash each day).In conclusion, these bottles are absolutely worth the price and I would recommend them to any new parents, regardless of whether your baby is breastfed or not.