Great that these can be used as baby grows!
I have tried these teats on my 4 month old baby girl. She is not normally bottle fed but took to these pretty well. She only uses bottles when she is babysat and therefore had a bit of trouble getting used to this teat as I think she is more used to her other bottle which has more of a grippy texture to the teat. That said, she took to the teat well after about 10 minutes. I love that these have a natural shape, and that the teats are soft and bendy to allow a better latch. My baby tended to chew the teat and the 3 month + was a bit of a fast flow for her. She is a guzzler so perhaps that affected how she was using it! I like that the teats are made for each month and as shown in the pictures, the numbers are clearly marked on the teat to distinguish the age for each teat. I have mother friends which use these teats and they come in very handy as their baby grows. They do find it hard to remember to change the teats as they grow, so perhaps a colour coded spot on the teat or similar would help as a reminder, or if the pack came with stickers to put in your calendar to remind you to move up to the next teat! The design on the teat is great with the 'comfort petals' which increase softness but keep the teat sturdy, which helps my baby as she is a chewer. Overall I think with practice my baby would take to these teats well, and I highly recommend them!