Works as advertised.

We made the switch to Avent because the sale price is just too tempting, and also I began noticing that baby is having more spit-ups than ever. I got one bottle to try together with Dr. B. We noticed the anti-colic effect straight away from the Avent because the burps are getting less noisy and baby seemed to sleep faster, with an obviously more satisfying feeding. We got more bottles because it works better for us than Dr. B, it is easier to clean, easier to hold, and just overall nicer feel to it. I used to believe Avent bottles are being hyped up, but after experiencing it myself, I now recommend it to other moms.