My son loved these bottles. Once he started he wouldn't switch to anything else and they were easy to clean.
But the vent seal at the bottom was HORRIBLE quality. Constantly leaking and had to replace pricey valves often.

I was not a fan of these bottles and neither was my baby. The nipple was a weird shape that baby didn't like. They were also a weird shape that made it kind of awkward for me to hold and forget about baby holding this on their own, even if they are a bit bigger and can already hold things quite well. They also leaked more often than not and the bottom vent part was more difficult to clean.

I would never recommend these bottle to any moms. They are so bad. The milk leaks out the bottom of the bottle. I will never buy this bottle ever again. They should take these bottle off the market and reinvent them so they stop leaking everywhere.

My son hated these bottles. I think it was the weird nipple shape they had but he would refuse to drink out of them. They leaked all the time too, so frustrating when breast milk takes forever to pump and formula isn't exactly cheap. Won't buy this product again.

Great bottles used for all 3 of my kids barely any gas for any of them from using these great products easy to clean and love the shape

This bottle helped my babies gas so much! It was the only bottle I could use.

These are the best bottles on the market in my opinion. You get less gas, less spitting up, less upset tummys, all around happy babies. And mommies.

These have been the only bottle I have ever had to purchase. The angled bottle design makes it comfortable to feed my daughter in any position. The vent at the bottom ensures that my child doesn't gulp down air. We have never had problems with this. The bottle does come apart into 6 (cap, nipple, top piece, bottle, bottom piece, vent seal). The cap has a special niche for the nipple so it doesn't leak during transport. If you are placing this bottle in water to warm it up, you will need to ensure it is dried or wrapped as water does get into the cracks of the bottom piece and will drip out when you tip the bottle if not dried properly. It is very important to take every piece apart to ensure proper cleaning (having to bottom open up makes it easier to clean in my opinion). When putting back together make sure everything is screwed back tightly to avoid leakage. I love that this set includes two different sized bottle, and two different sized nipples. I am set from baby to toddler with no need to purchase more!

Love the bottle, effective but the only thing is that it had à lot of pieces to wash everytime

I HATED these bottles! I liked that they could be taken apart, which made them easy to clean; however, they leak! The bottom part has to be screwed on just perfect or else the water and milk quickly leaked from the bottom (especially if the water was still warm/hot). I had so much trouble with these I ended up buying all new bottles and giving these away.