Great until it start leaking

I tried this bottle to help reduce gas for my baby. I did like that it's angled to help reduce air bubbles but the rubber seal started leaking after a few uses which turned me off. Since then I found another colic brand of bottles that work better.

Good Product

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!

These bottles aren't the best but they are alright. I find that they leak at the bottom a lot if you don't tighten the bottom enough but I love everything else about them and they are super easy to clean. They are pretty a little expensive but still less expensive then other brands.