I just started using these with a newly placed foster baby. They do very well as far as limiting air in babies tommy but seem to leak if not completely dry before being filled with formula.

I used to use these for my firstborn son before I started using the Dr. Brown bottles. They seemed to be okay but then I realized my baby would have tons of spit up and gas from the bottles so I switched to the Dr. Browns.

These are a nice option for gas and colic, but if your child is on formula like mine (due to allergies) they are kind of a pain because you can't mix in the bottle or it causes gas, which defeats the purpose for any late night or 3 a.m. feedings.

Loved these for the reoson that they have a bend in them. Easy for my daughter to feed herself

Like them, but making them at 3am takes more time because you have to screw the bottom on, and make sure you have the plastic seal ...if not its a big problem. Good shape, but not a fan of extra steps when they interfere with what sleep I do get.

these work wonderfully. DO NOT get them too hot on mistake or boil to sanitize. Also mine always seemed to start leaking after a few months, so replace parts before you make that long trip somewhere and run in to trouble! Worth the work and pieces though. Very effective product.

i love it

These bottles did help with gas for my boys when they were babies but there were so many pieces and it was hard to find replacement pieces in the store.

I love these bottles but I have to say it is a little more difficult to clean because you have to take the tops and bottoms apart to clean. Other than that I like them just fine

Love these bottles!! Used these bottle for both my boys. They never got colic or were fuzzy. They were easy to clean and came apart very easily. Awesome bottles, just take care and clean very well of the bottom rubber ring.

These were nice for my first child he ate well out of them. My second refused them but she was picky!!

I used these bottles the first couple of weeks, but my daughter had reflex super bad and these were not helping her at all. I did like the bottles as far as product and look.

I didn't really like these much. They didn't seem to keep my daughter from swallowing too much air.

kinda complicated because of the pieces. its not the conventional bottle so most people would need to adjust when using this for their little one

These were amazing to start out with. After about 10 washes, they leaked out all over the place. I had to take it apart and re-adjust the lid every time. It was extremely aggravating, especially when you have a hungry infant screaming at you!