@Hannah we just bought them today, hopefully little one likes it!
I used them with my first, only ones that worked and we tried so many. I am now using them with our second too. But I got the narrow ones as my daughter was very tiny and struggled to get a decent latch around the bigger teats.
Actually that's a point, we started with the narrow ones and progressed to the bigger ones!
I’ve only used de browns glass bottles and firstborn loves it. Having to top up breast milk and second born currently doing well on them too. A bit of a pain to wash though because of all the parts
We use mam bottles and had the same problem but we have just changed tests to lansinoh as they fit mam bottles and they have helped with the air intake x
Love them!! I used them for my first and will be using them for second as and when! Such a good concept and works really well!